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Monday, January 06, 2025

The Emergence of Time as a Social Force



 January 3, 2025
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Photograph Source: Alex Lehner – CC BY 2.0

In 1336, Milan was expanding to become one of the richest and most important cities in all of Europe. From the end of the 13th century, it was ruled by a powerful dynasty that would go on to found the Duchy of Milan, a major state that would remain intact until Napoleon’s armies swept across Europe centuries later. That year, Milan cemented its position as a burgeoning technological powerhouse by introducing “the first documented hour-striking clock in a public setting.” Milan’s spectacular clock was an international sensation and “has been described as the first true automat in Europe and the locking wheel as a precursor of the computer.” The hourly ringing of its bells heralded the modern world, the world we know today, dominated by the power of time, where nothing would fall outside of its ambit. It was spellbinding, the cutting edge breakthrough of its day. Until then, time was conceived not as fixed and linear, as a standardized grid within which to situate the tasks of daily life—rather the tasks of daily life were the clock, dictating and defining time rather than the inverse. The prevailing model of time was as something relativistic, informed by patterns in nature that were not rigid and unmoving. But time assumed a new form and social energy. From the early modern period on, “time” becomes one of the most frequently used words, tightening its grip on the social order and our imaginations. Time of this new kind is an artifice that must be produced through social norms and institutions. It is neither natural nor necessary, but is rather a development from complex material realities and the interests of an emerging ruling class.

After these developments in the Late Middle Ages and Early Renaissance, in which time is invented or at least socially reinvented, the concept undergoes a series of refinements that deepen its penetration of social and economic life. Until today, when the reification of time into a powerful tool of social control and domination seems almost complete. Ever more precise instruments for measuring time and smaller and more exact units of measurement have created a new and distinctly modern understanding of and relationship with time. Time continued to magnify its power, and the separation of production into smaller and more discrete steps tracks the invention and development of time. But it did more than just reshape patterns of production; it reshaped the human subject and her conception of herself and her physical and social environment. The subject would now always understand herself as being within time, adopting its purposes and logics, justifying her decisions in its terms. Later, with the social relationships and patterns of the industrial age, time is reconceived as yardstick, taskmaster, and disciplinarian, as a new God to which unending sacrifices are owed. Increasingly, every waking minute must be filled to propitiate the insatiable gods of productivity and efficiency—every activity and minute required to complete it must be scheduled and optimized. “The growth of a sense of time—the acceptance of time—is a process of adaptation to an ever more reified world.” We have become the subjects of highly refined, historically contingent new absolutism. One can express himself in any way, adopt any lifestyle in private, just insofar as he can never exercise any meaningful control over his time. The inexorability of time makes it “the ultimate model of domination,” fragmenting and dispersing everything before it by artificially separating us from the reality of experience as continuous, unified, and fluid. By breaking time into ever smaller units, we are disintegrating human life and experience itself, creating abstract, unnecessary distinctions between fundamental aspects of human life. Once meaningless and essentially unknowable, time as a social construct and system is now inescapable, “mirroring blind authority itself.”

Our lifelong relationships with time under capitalism are emotionally fraught. Time presses upon us with increasing energy and persistence in the age of the smartphone, as our calendars and other “productivity” applications ensure a steady outpouring of reminders and alerts. Time is there and it is running out fast, grains of sand piling up on the floor of the hourglass. In our era of ever-increasing pace, in which our culture places enormous value on speed, precision, and efficiency, there is the temptation to inspect each grain. Was that unit of time spent wisely? Now we have wearable devices that can provide us with information about the user’s heart rate, sleep patterns and quality, and exercise habits. Review the data and optimize the system—that’s the message, and it carries with it an indispensable temporal quality, because what is maximally efficient in any given case is dependent on time and how much of the precious commodity one has. Time is now conceived of in its pure commodity form, perfectly reducible and fungible. Andrew Niccol’s 2011 film In Time, though widely panned, explored an interesting iteration of this idea: the story plays out in a future where time has become the standard currency, and how long you can stay alive is determined by how rich you are. People are separated into segregated “Time Zones,” where the poor live out their short lives in ghettos. Even in our so-called free society, the lives of workers and the poor are necessarily shortened, for even if they are long, the amount of time free from toil—that is, the real life of the individual—is painfully and tragically short.

Several thinkers have drawn historical connections between the technologies that give us time as we know it and the social mechanisms of domination today associated with it. If we have been tempted to treat such technological advances as necessarily opening the way to increasing convenience and improved quality of life, then they give us reasons to at least subject this story to scrutiny. The work of eminent historian E.P. Thompson provides us with one of the seminal treatments of the cultural transformation wrought by the “new immediacy and insistence” of time as “[t]he clock steps on to the Elizabethan stage.” In his 1967 article “Time, Work-Discipline, and Industrial Capitalism,” Thompson argues that new technologies for tracking time were attended by dramatic shifts in “the inward apprehension of time of working people” and thus by “a severe restructuring of working habits—new disciplines, new incentives, and a new human nature upon which these incentives could bite effectively.” Time crept into every corner of life, as the day was bent into conformity with the needs of the economic system. In a short but fascinating aside, underlining the connection between these new ways of conceptualizing time and the most private and intimate aspects of human life, Thompson observes that, for a time, “winding the clock” took hold as a slang term for sexual activity following the 1759 publication of the popular and influential novel Tristram Shandy. Among the humorous scenes early in the novel is a question from the protagonist’s mother, put to his father during the carnal act resulting in Tristram’s conception: “have you not forgot to wind up the clock?” Everything is susceptible to commodification and exchange, time and sex included. The advent of time as we know it gave us small, discrete units capable of being alienated (in the sense of a conveyance or transferral); it fit perfectly with commodity capitalism.

There is a sense in which freedom is reducible to free time, in which domination and unfreedom are bound to the historical establishment of control over the time of others. Today, there is an overwhelming feeling “that people shouldn’t really have control over their time—that they can’t be trusted with it, that they need to be dominated in order for there to be some social order.” From the philosopher Theodor W. Adorno (1903-1969) we receive one of the most trenchant looks at the concept of time in its current social dimensions. Adorno’s 1969 essay “Free Time” attempts to ground a critique of our approaches to free time under contemporary conditions, contending that our relationships with it are shaped in decisive ways, “functionally determined” by “relations of production into which people are born.” Adorno believes fundamentally that we are living within an “age of truly unparalleled social integration,” in which institutional cohesion and consolidated power are such that the individual is functionally trapped, unable to contend with the almost total subjugation of free time. Adorno thinks this means “that ‘free time’ is tending toward its own opposite, and is becoming a parody of itself.” Adorno’s arguments, though filled with a kind of curmudgeonly condescension, cut into the inescapable social totality created by capitalism: “The miracles which people expect from their holidays or from other special treats in their free time, are subject to endless spiteful ridicule, since even here they never get beyond the threshold of the eversame … .” For Adorno, there is a deep sense in which the cultural fixation on and celebration of not being at work, of engaging in carefully curated and choreographed hobbies and leisure activities, itself shows the extent to which capitalism and its characteristic program of time discipline has come to dominate all of life. “If people were able to make their own decisions about themselves and their lives, if they were not caught up in the realm of the eversame, they would not have to be bored.”

Adorno demonstrates that, by themselves, the technological mechanisms necessary for the distillation of time were insufficient to bring about the new power of the clock; also necessary were the social and economic predicates. Successive advances in the sophistication and accuracy of timekeeping coincided with efforts to rationalize uses of land and labor. When the English ruling class engrossed the land, they engrossed the time of the peasantry along with it as a matter of course. The political world, its problems and possibilities, are inconceivable absent their temporal character; we cannot imagine the political world without reference to time. We could almost index political categories by their attitudes toward time and the ceaseless flow of history, where conservatives “stand athwart history,” hoping to slow in some way the passage of time. For their part, progressives associate movement into an unknown future with social and technological developments and steady advancement. In the current moment, when capital continues to concentrate and the crisis realities of this growing inequality visit us with increasing frequency, capitalism seems to have conceptually preempted the future: even as we live under its domination and see its innate tensions play out, there is a sense that the system of global capitalism cannot end. Progressives and liberals have made their peace with capitalism, quietly resigning efforts to imagine and build alternatives. We’re stuck at the end of history, without the tools to go beyond the dead end.

But even as we’re stuck, we seem to be moving faster and faster, careening even. The incredible salience and ever-increasing speed of these cultural and technological changes has been such that they have changed the way we talk about history and time. Long before the spread of the consumer internet pushed us into a new Information Age, generations of modern people had noticed that the technological developments and scientific discoveries and advances were increasingly frequent. Contemporary scholarship on the Anthropocene and the global impact of human civilization across multiple domains has introduced the concept of the Great Acceleration, “twin surges, of energy use and population growth.” This notion of an ongoing age of Great Acceleration can be generalized as a framework for analysis. Today we observe unprecedented, transformational acceleration in general technological development, the overwhelming pace of work, the frenetic information flows and consumption patterns, the ominous concentration of capital, and unsustainable environmental degradation. Everything has been picking up speed. Just as more granular company data provide a clearer picture and thus more focused and complete control over workers and the processes of production generally, so did increasingly precise time measurement mean stronger and more inescapable control over workers and society at large. As capitalist society has grown more complex and fast-paced, the amount of information we are being asked to confront, analyze, and produce every day has grown tremendously, informing and changing our subjective impressions of the passage of time: we can think of the increasing compression and density of information as accelerating time, an adjustment to our experience of time phenomenologically.

If time is experienced as the constant, irreversible outpouring of changes in the state of the system, higher degrees of information density may be experienced as an acceleration of time. Our most scientifically sophisticated concepts of time are intimately bound up with the fact of our limited knowledge and understanding, of its slippery, relativistic nature. We cannot define time without reference to physical space, without a description of its relative, flexible coextension with space. This relationship holds in politics and philosophy no less than in physics. Several related concepts from these fields help give form and substance to the notion of time. One common way of thinking about time presents it as an arrow—always pointed in one direction, toward the future, away from the past, always moving in that direction. But why does time run only in one direction? Our understanding of time is connected to models of thermodynamics, in particular the Second Law, which is the idea that the measure of disorder in a given closed physical system tends to increase. This measure of disorder is called entropy, where a higher entropy value expresses the lack of organization that grows as the component parts of the system attempt to move toward a state of equilibrium. More precisely, entropy is a measure of the number of states the overall system could produce while maintaining the same overall energy profile. “Entropy,” according to leading theoretical physicist Sean Carroll, “is a way of characterizing our ignorance about the system.” As disorder and disorganization spread through a system, it becomes increasingly difficult to describe in formal, mathematical terms. The emergence and multiplication of these asymmetries are experienced as the passage of time.

We live in a time when many of our most advanced scientific minds wonder aloud whether we will be replaced entirely by computers—and, more than that, whether such a replacement might be desirable and good. Many of our leading technophiles and techno-optimists believe that in inventing AI, we have accelerated evolution and inaugurated a new age. And if all that matters to us is speed and efficiency, then perhaps they are right. But if there is more to measure than efficiency, narrowly constructed in terms of capitalist logics, then we need tools to pass beyond the dead end and reimagine time socially. We have inherited varied critiques of time as a social reality, and these can help us render both better concepts of time and new ways to counter its power in social and economic life. Without full and complete access to our time, we are deprived of our lives themselves. The real mystery is “that there is not more active resistance to this state of affairs,” that people have come to see the total conquest of their time on earth as a condition both natural and inevitable.

David S. D’Amato is an attorney, businessman, and independent researcher. He is a Policy Advisor to the Future of Freedom Foundation and a regular opinion contributor to The Hill. His writing has appeared in Forbes, Newsweek, Investor’s Business Daily, RealClearPolitics, The Washington Examiner, and many other publications, both popular and scholarly. His work has been cited by the ACLU and Human Rights Watch, among others.

LA REVUE GAUCHE - Left Comment: Search results for CLOCK

LA REVUE GAUCHE - Left Comment: Search results for TYRANT TIME

LA REVUE GAUCHE - Left Comment: Tyrant Time-Tempus Fug'it

LA REVUE GAUCHE - Left Comment: Tick, Tock, We Live By The Clock


Thursday, July 13, 2023

The timekeeper within: New discovery on how the brain judges time

Peer-Reviewed Publication

CHAMPALIMAUD CENTRE FOR THE UNKNOWN

Rat with hourglass 

IMAGE: SCIENTISTS ARTIFICIALLY SLOWED DOWN, OR SPED UP, PATTERNS OF NEURAL ACTIVITY IN RATS, WARPING THEIR JUDGEMENT OF TIME DURATION. view more 

CREDIT: CREATED BY HEDI YOUNG WITH THE ASSISTANCE OF STABLE DIFFUSION



From Aristotle’s musings on the nature of time to Einstein’s theory of relativity, humanity has long pondered: how do we perceive and understand time? The theory of relativity posits that time can stretch and contract, a phenomenon known as time dilation. Just as the cosmos warps time, our neural circuits can stretch and compress our subjective experience of time. As Einstein famously quipped, “Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute”.

In new work from Champalimaud Research’s Learning Lab published in the journal Nature Neuroscience, scientists artificially slowed down, or sped up, patterns of neural activity in rats, warping their judgement of time duration and providing the most compelling causal evidence so far for how the brain’s inner clockwork guides behaviour.

In contrast to the more familiar circadian clocks that govern our 24-hour biological rhythms and shape our daily lives, from sleep-wake cycles to metabolism, much less is known about how the body measures time on the scale of seconds to minutes. The study focused precisely on this seconds-to-minutes timescale at which much of our behaviour unfolds, whether you’re waiting at a stop light or serving a tennis ball.

The Population Clock Hypothesis

Unlike the exact ticking of a computer’s centralised clock, our brains maintain a decentralised and flexible sense of time, thought to be shaped by the dynamics of neuronal networks dispersed across the brain. In this “population clock” hypothesis, our brains keep time by relying on consistent patterns of activity evolving in groups of neurons during behaviour.

Joe Paton, the study’s senior author, likens this to dropping a stone into a pond. “Each time a stone is dropped, it creates ripples that radiate outward on the surface in a repeatable pattern. By examining the patterns and positions of these ripples, one can deduce when and where the stone was dropped into the water”.

“Just as the speed at which the ripples move can vary, the pace at which these activity patterns progress in neural populations can also shift. Our lab was one of the first to demonstrate a tight correlation between how fast or slow these neural ‘ripples’ evolve and time-dependent decisions”.

The researchers trained rats to distinguish between different intervals of time. They found that activity in the striatum, a deep brain region, follows predictable patterns that change at different speeds: when animals report a given time interval as longer, the activity evolves faster, and when they report it as shorter, the activity evolves more slowly.

However, correlation does not imply causation. “We wanted to test whether variability in the speed of striatal population dynamics merely correlates with or directly regulates timing behaviour. To do that, we needed a way to experimentally manipulate these dynamics as animals reported timing judgements”.

Unravelling Time with Temperature

“Never throw away old tools”, smiles Tiago Monteiro, one of the study’s lead authors. To establish causation, the team turned to an old-school technique in the neuroscientist’s toolbox: temperature. “Temperature has been used in previous studies to manipulate the temporal dynamics of behaviours, such as bird song. Cooling a specific brain region slows down the song, while warming speeds it up, without altering its structure. It’s akin to changing the tempo of a musical piece without affecting the notes themselves. We thought temperature could be ideal as it would potentially allow us to change the speed of neural dynamics without disrupting its pattern”.

To test this tool in rats, they developed a custom thermoelectric device to warm or cool the striatum focally, while simultaneously recording neural activity. In these experiments, the rats were anaesthetised, so the researchers employed optogenetics - a technique that uses light to stimulate specific cells - to create waves of activity in the otherwise dormant striatum, much like dropping the stone into the pond. Notes co-lead author Margarida Pexirra, “We were careful not to cool the area too much, as it would shut down activity, or warm it too much, risking irreversible damage”. They found that indeed cooling dilated the pattern of activity, while warming contracted it, without perturbing the pattern itself.

“Temperature then gave us a knob with which to stretch or contract neural activity in time, so we applied this manipulation in the context of behaviour”, says Filipe Rodrigues, another lead author in the study. “We trained animals to report whether the interval between two tones was shorter or longer than 1.5 seconds. When we cooled the striatum, they were more likely to say a given interval was short. When we warmed it, they were more likely to say that it was long”. For example, heating up the striatum sped up striatal population dynamics, similar to accelerating the movement of a clock’s hands, causing the rats to judge a given time interval as being longer than it really was.

Two Brain Systems for Motor Control

“Surprisingly”, adds Paton, “even though the striatum coordinates motor control, slowing down or speeding up its patterns of activity doesn’t correspondingly slow down or speed up the animals’ movements in the task. This got us thinking more deeply about the nature of behaviour control in general. Even the simplest organisms face two fundamental challenges when it comes to controlling movement. First, they have to choose from among different potential actions - for instance, whether to move forward or backward. Second, once they’ve chosen an action, they need to be able to adjust and control it continuously to ensure it’s carried out effectively. These basic problems apply to all kinds of organisms, from worms to humans”.

The team’s findings indicate that the striatum is critical for resolving the first challenge - determining ‘what’ to do and ‘when’ - while the second challenge of ‘how’ to control the ongoing movement is left to other brain structures. In a separate study, the team is now exploring the cerebellum, which houses more than half of the brain’s neurons, and is associated with continuous, moment-by-moment execution of our actions. “Interestingly”, Paton reveals, “our preliminary data shows that applying temperature manipulations to the cerebellum, unlike the striatum, does affect continuous movement control”.

As Paton points out, “You can see this division of labour between the two brain systems in movement disorders like Parkinson’s and cerebellar ataxia”. Parkinson’s, a disease that affects the striatum, often hampers patients’ ability to self-initiate motor plans, such as walking. Yet providing sensory cues, like lines of tape on the ground, can facilitate walking. These cues likely engage other brain regions, such as the cerebellum and cortex, which are still intact and can effectively manage continuous movement. By contrast, patients with cerebellar damage struggle with executing smooth and coordinated movements, but not necessarily with the initiation or transition between movements.

Implications and Future Directions

By providing new insights into the causal relationship between neural activity and timing function, the team’s results may advance the development of novel therapeutic targets for debilitating diseases such as Parkinson’s and Huntington’s, which involve time-related symptoms and a compromised striatum. Additionally, by highlighting a more specific role for the striatum in discrete, as opposed to continuous, motor control, the results could also influence algorithmic frameworks used in robotics and learning.

“Ironically, for a paper about time, this study was years in the making”, remarks Monteiro. “But there’s plenty more mystery to unravel. What brain circuits create these timekeeping ripples of activity in the first place? What computations, other than keeping time, might such ripples perform? How do they help us adapt and respond intelligently to our environment? To answer these questions, we’re going to need more of something we’ve been studying…time”.

Sunday, February 05, 2023

"Time is not what it used to be": Children and adults experience time differently

Time can do tricks. Many of us experienced the illusion that those long summers during childhood felt so much longer than the same 3 months feel like now as an adult.

Peer-Reviewed Publication

EÖTVÖS LORÁND UNIVERSITY (ELTE), FACULTY OF SCIENCE

"Time is not what it used to be": children and adults experience time differently 

IMAGE: RESEARCHERS AT EÖTVÖS LORÁND UNIVERSITY HAVE INVESTIGATED WHETHER THE PERCEPTION OF TIME CHANGES WITH AGE, AND IF SO, HOW, AND WHY WE PERCEIVE THE PASSAGE OF TIME DIFFERENTLY. THEIR STUDY WAS PUBLISHED IN SCIENTIFIC REPORTS. view more 

CREDIT: PHOTO: NÁDASDY ZOLTÁN

Researchers at Eötvös Loránd University have investigated whether the perception of time changes with age, and if so, how, and why we perceive the passage of time differently. Their study was published in Scientific Reports.

Time can do tricks. Many of us experienced the illusion that those long summers during childhood felt so much longer than the same 3 months feel like now as an adult. While we can argue why one summer may appear longer than the other and how the percept of time can compress and dilate durations depending on various factors, we can easily set up an experiment to gain more insights.

The researchers just did that. They asked how eventfulness affects our duration estimates when probing at different milestones during our cognitive development. They set aside three age groups, 4-5, 9-10, and 18 years and older, and made them watch two videos, 1 minute each. The two videos were extracted from a popular animated series, balanced in visual and acoustic features, except for one feature: eventfulness. One video consisted of a rapid succession of events (a policeman rescuing animals and arresting a thief), and the other was a monotonous and repetitive sequence (six shady prisoners escaping on a rowing boat). The researchers played the two clips in a balanced order of 50%, watching the eventful first. After watching both videos, they asked only two questions: "Which one was longer?" and "Can you show the durations with your arms?" Easy to understand questions even for a 4-year-old.

The results showed a strong bias in each age group but for pre-kindergarteners, surprisingly, in the opposite direction.

While more than 2/3rd of pre-kindergarteners perceived the eventful video as longer, 3/4th of the adult group felt the same about the uneventful video. The middle group expressed a similar but more moderate bias than the adult. By the inclusion of the middle group (9-10-year-olds), the inflection point could be estimated around the age of 7. Regarding the arm-spread orientation, and distance, there was an increasing trend of using horizontal arm spreading with age. While pre-kindergarten-age kids used 50-50% vertical and horizontal gestures, by school age, that ratio changed to 80-90% in favor of horizontal arm expressions. 

The result is unexpected because none of the biological models of time perception could have predicted it. How can we interpret this result? Biological models of time perception fall under two categories: pacemaker-like neurons in the brain and neurons that display a declining firing rate with time. Still, "who" would interpret those signals in the brain remains elusive. Both model classes assume a continuous age-dependent improvement with age. However, this is not what the researchers found. Instead, what they found was a switch of perceived duration ratios between the youngest and the two older groups, with a turning point at 7. How can we explain such a bias reversal? 

The authors called upon the concept of heuristics, introduced in cognitive science by Amos Tversky and Daniel Kahneman. They define heuristics as mental shortcuts or proxies that enable one to make quick decisions. To understand why we need heuristics for comparing durations, let us look at what else we can rely on. Since the brain has neither a reliable central clock nor a direct sensory mapping of durations, unlike distances or pitch, we must use a proxy. A proxy to "duration" is something concrete yet related to the time content, like "Which one can I talk more about?". If the first video was packed with actions, they could tell a lot about it, thinks the 5-year-old. While the other movie could be summarized with a single verb, such as "rowing". The eventful video consisted of three episodes, a perfect example of a story. The uneventful video, in contrast, had no episodes and no storyline. In terms of heuristics, the difference can be captured by representativeness heuristics. The eventful video had more representative story examples than the uneventful one. Therefore, relying on a representativeness heuristicthe kindergarteners would feel the eventful video was longer (see the left side of the figure).

If this notion of duration provides a good proxy for "time", why do we switch to another system at 7? The researchers argue that the answer is switching to another class of heuristics, namely, sampling heuristics. At around the age of 6 to 10, kids learn the concept of "absolute time". We all rely on the concept of absolute and universal time when we make appointments, organize our tasks, and follow timelines. All these actions reinforce the concept of universal time that is independent of the observer and entirely consistent with Newton's classical mechanics. We start thinking about time as a physical entity, independent of the events that it connects, and we become aware that our subjective experience of time as observers may change or be a subject of illusions. The best we can do to eliminate subjectivity is to check the flow of time.

We can check the flow of time by frequently sampling it. Looking at the clocks or just staring out the window and watching the traffic flow. The more often we check, the more reliable the estimate we get. However, our brain is not always available for tracking time. When our attention is occupied with another task, then this sampling of the absolute time may skip cycles. In contrast, when waiting for somebody who is late for an appointment, time slows down as the brain counts the seconds while impatience and irritation increase. 

In light of these heuristics, representativeness, and sampling, let us see how we sample the absolute time when we are asked to guess the duration of an exciting and captivating video versus a boring one. When watching a captivating movie, the mind is completely immersed in the story because the sequence of actions unfolds so fast that one does not have time to think about anything else, such as life, work, or a to-do list. Instead, the mind is hijacked by the alternative reality of the movie plot. In contrast, when watching a boring movie, one is going to check the watch or think about where else one could be at that time, and all these distractions enable us to sample the flow of absolute time (right side of the figure). Hence, the two types of heuristics explain the bizarre switch at about age 7 and the persistent bias that the boring meetings appear longer than they are, which stays with us for the rest of our life.  

While the enigma of time has been and will continue to intrigue the human mind, it is essential to realize that these fundamental concepts, like time and space, are more complex than we can pin down by certain types of neurons in the brain. To wrangle such abstract concepts, one needs to connect all biological and cognitive pieces. Will we ever complete that jigsaw puzzle? Only time will tell.