can watch things change right now. Time at the very least is empirical. — Marchesk
This means that we need a variable to allow this to happen. — bahman
.Time does not lie on a point.
— Rich
I didn't say so — bahman
It is a psychological feeling imbued in the mind. We feel time pass we do not see it pass and we associate this passage of time with changes in memory.
— Rich
I was not talking about psychological time.
Time does not lie on a point. It is a psychological feeling imbued in the mind. We feel time pass we do not see it pass and we associate this passage of time with changes in memory.
— Rich
I can watch things change right now. Time at the very least is empirical. — Marchesk
I think that's confusing the map with the territory. Time, whatever it is, just is. The modeling of time via mathematics requires a variable often labelled 't'. Time existed long before the letter t. Variables are a historically contingent abstract idea of humans. In fact letters of the alphabet used as symbolic variables in mathematical expressions didn't come about till relatively recently, in the 13th or 14th centuries. — fishfry
If time just is what it is, then why does it move at different speeds at different places? Or are we not allowed to enquire why, because it just is? — tom
This means that we need a variable to allow this to happen. — bahman
I think that's confusing the map with the territory. Time, whatever it is, just is. The modeling of time via mathematics requires a variable often labelled 't'. Time existed long before the letter t. Variables are a historically contingent abstract idea of humans. In fact letters of the alphabet used as symbolic variables in mathematical expressions didn't come about till relatively recently, in the 13th or 14th centuries.
https://en.wikipedia.org/wiki/History_of_algebra — fishfry
Time does not lie on a point.
— Rich
I didn't say so.
— bahman
Actually you did. Read your presentation. You are defining duration as lying between two points. Exactly b what lies between two points? — Rich
It is a psychological feeling imbued in the mind. We feel time pass we do not see it pass and we associate this passage of time with changes in memory.
— Rich
I was not talking about psychological time.
-bahman
Real time is psychological time. Duration is a feeling. There is nothing physical or v spatial about it. — Rich
Consider a change in state of a system, X->Y. Two states cannot lay on each other since the state of affair becomes ill-defined. This means that two states must lay on different points. This means that we need a variable to allow this to happen. There must however be a duration between two points otherwise the change will never takes place. The variable is therefore time.
If "two states must lay on different points", then why is the concept of time needed in the first place. If any body can be expressed as a set of points in space, then any change can be expressed as a change in the arrangement of those points in space...spacetime. — Cavacava
Fine but less than satisfying psychologically because it lacks an ego, which, I think is why we think time flows. — Cavacava
The trajectory of a ball can be described mathematically, all other components can similarly be described using math...and in higher math time (t) drops out of the equations altogether, my understanding is that it becomes a frequency function.Because you need to reach from one point to another one and this should take a while otherwise everything elapses in an instant.
What do you mean?
By Variable I meant something which is subject to change. — bahman
Time is not a separate thing we have deduced from empiricism, it is the description we have attached to our observation. — The Curiorist
It is evident that change occurs in the world and this we call time. — The Curiorist
By Variable I meant something which is subject to change.
— bahman
So then your argument is circular. "Things that change require a variable. Why? — fishfry
Because a variable is something subject to change." Circular, right? — fishfry
Besides, aren't constants variables? The function f(x) = 3 is constant, yet x is the independent variable. You are using a technical term with a different meaning than normal but not fully defining your new meaning. — fishfry
Only the mind can experience duration, unless you have communicated with a rock who told you otherwise. — Rich
I don't have to communicate but that is because In am Mind, however, if I'm claiming that it is possible to n experience duration without a Mind then I would like to hear it from the horse's mouth. On the other hand, one could claim that a rock is also Mind and can experience duration as Mind, but that is a different story.Why would you have to be able to communicate to experience duration? — Metaphysician Undercover
If two different things experience time in two different ways, this does not mean that one of them does not experience time at all. — Metaphysician Undercover
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