What Time is ISo what time am I?
An ordered arrangement of triangles of balls is broken in the right time order. The other way, it gathers out of nowhere. It never happens, and so the right time sense is defined. This discrepancy between the absence of a close-up time and the ubiquity of close-up time has long been the object of debate and investigation... he... he... time.
Carlo Rovelli's The Order of Time is a recent and particularly welcome introduction to this debate. Since Einstein's theory of relativity, we have known that the quest "What is going on at another place in the universe" has no clear answers. Usually the way to tackle the physical of the cosmos and the arrows of time is to suppose that time somehow began in a very organized instant - the Big Bang as the most impressing swimming pools brake of all time - and the dissolution of this original order, quantified as an increment of overall entropy within the cosmos, is what gives us the arrows of time.
In fact, the second thermodynamic principle states that the entire entropy either remains the same (at best) or grows (more frequently) over time. In order to be able to say that something is increasing with time, we must already have time. However, the rise of entropy, in this thought, is what determines time. Really is how things are changing to each other, and time doesn't really exists as something separate from it.
We perceive a relentless stream of time as a result of the observable growth of entropy and of the tracks of more orderly orders in the cosmos that we see in our own particular "now. Time' s heading is because we see these tracks of a more ordered cosmos in the present chaos, while the Big Bang contains no tracks of Astronomers, Scopes, or Planetary Earth.
There was no sign of this disorderly and aging physical being in the younger self, but my mind still contains links, recollections of this lower Entropy. And the fact that my master room was so much more messy then than it is today shows that of course you have to consider the whole system entity.
Indeed, as Rovelli points out, the seeming entropy of a system is dependent on how you look at it. Time is therefore (a) not all-purpose, (b) can only be determined by the sense of growing entropy anyway, and (c) the amount of something's entropy will depend on how exactly you look. Against this background, it is possible to conceive that time flows not only in different parts of the cosmos at different speeds, but also in different orientations.
One thing of which Rovelli is certainly conscious, but not really concerned, is the fact that the micro scale physics of the cosmos contain some kind of definition of time. This means that in some very uncommon clashes of our spheres (or in fact in decay of quark and antiquark particles) it is possible to differentiate between forward and backward time without causing the entropy.
This difference disappears, however, if you exchange the material for antermatter and the one on the right for antermatter (at the same time as switching the forward time to backward time). Does entropy have anything to say about outer time? F: Which songwriter always puts the ball for the breake in pools, but then immediately commits a foul?
At a time when objective, truthful coverage is crucial, it is what distinguishes us from so many others.