https://lithub.com/is-time-even-real-does-it-even-flow/
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“If time flows then that would suggest it should be flowing at some rate, but what would we measure that rate against?”
“But the events themselves no longer exist .”
“However, in physics when we talk about changes over time we are generally referring to those quantities that vary dynamically , such that they are different at different moments of time.”
“The answer is that modern science has nothing whatsoever to say about the flow of time!”
“Only fragments of his work survive, including his greatest work: a poem called On Nature , in which he describes two views of reality.”
“However, while time may not require change in order to exist, what about the other way round: Does change require time?”
“It certainly seems that the strong sense we have of time continuously flowing from past to future is indeed just an illusion, however real it might seem to us.”
“Consider what we do when we wish to describe the speed of a certain process.”
“Literary Hub » Is Time Even Real?”
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“He has written numerous books that have been translated into twenty-six languages.”
“We either count the number of events in a given interval of time, such as the number of heartbeats per minute, or the amount of change in an interval of time, such as how much weight a baby has put on in one month.”
“Two thousand years later, Isaac Newton argued that time provides the backdrop for all change.”
“The view of interest here is the first one, called The Way of Truth , in which he denies the reality of change, arguing that change is impossible and that its very notion is incoherent; rather that everything which exists is permanent and unchanging.”
“The very notion of a rate of change is itself embedded within time.”
“For example, a particle has a certain position, or is moving at a certain velocity, at a given value of t .”
“But we only sense that time flows.”
“Does time go by at a rate of one second per second?”
“This idea, which we will examine more closely later on, emerges from an idea called the block universe, which gained prominence after Einstein put forward his first theory of relativity, in which time is regarded as the fourth dimension of spacetime.”
“Atmospheric pressure changes when you climb to higher altitudes, the speed of a car changes when you press your foot on the accelerator pedal, the clarity of an image under a microscope changes when you use different lenses or alter their focus, and my mood changes when my football team wins or loses a match.”
“All that actually exists according to physical time is an ordered sequence of events: states of reality defined at different points (moments) on the time axis.”
“But these states of the particle at different times are themselves just snapshots at certain instances.”