This site makes extensive use of JavaScript.
Please enable JavaScript in your browser.
Live
PTR
10.2.7
PTR
10.2.6
Beta
What Is Time? (Physics Continued)
Post Reply
Return to board index
Post by
ASHelmy
Yea, if we could go back, everyone would make the perfect world for them. It would be total chaos, everyone fixing their life while messing up everything else.
Post by
Random0098
No. It's actually impossible to change anything in the past, I swear.
Considering the universe as a 4 dimensional spacetime manifold, everything in the past and everything in the future just IS. So if (for some reason physics stops working) you go back in time, and want to say, kill hitler before he's supposed to die, you wouldn't be able to - because it never happened.
That's assuming we're just talking about the real universe - and not assuming that alternate dimensions/realities pop into being all the time cluttering existence.
Post by
Neutronimity
I partly agree to your points, but we don't know, we never tried it out.
Considering the universe as a 4 dimensional spacetime manifold
Actually there should be much more dimensions.
Oh and the post code is
psy5q
lol
so much to physics and psychology
Post by
Random0098
Yeah, but all those other dimensions don't really apply to the situation - they're more theoretical sub-atomic thingies.
Post by
Neutronimity
Yeah, but all those other dimensions don't really apply to the situation - they're more theoretical sub-atomic thingies.
/agree
EDIT: sorry, forgot to share a (german, sadly!)
website about time
.
Post by
Skyfire
"Entropy is a direct effect from time, and documented in the second law of thermodynamics, but would time even occur if there were no entropy?".
I don't think we can go down that path, because entropy is a function of time, and not the other way around. Unless you want to see if you can prove that the inverse also holds true?
Post by
MyTie
If things never decayed, time would be infinite, or circular... sounds a lot like heaven.
Post by
Random0098
This thread has been nerfed!
Post by
120885
This post was from a user who has deleted their account.
Post by
ASHelmy
How does it make sense, then?
Post by
120885
This post was from a user who has deleted their account.
Post by
ASHelmy
And how does that have anything to do with the past?
Post by
112775
This post was from a user who has deleted their account.
Post by
120885
This post was from a user who has deleted their account.
Post by
ASHelmy
Still don't get what it could do with past events tbh, just say what you mean already, I am tired :D.
Post by
Random0098
I'll tell you one thing:
Tiiiiiiime is on my side. Yes it is!
Post by
MyTie
Ok... I had renewed curiousity after finding out that 99.9% of an atom is... nothing. That means that time has to occurr in the 4th dimention continually, even when nothing is there, otherwise it would never encounter the 4th dimention point at which an object entered said space. If this is the case, then objects could never enter empty space, because there would never be a time at which they would enter.
My physics' professor mentor dismissed this by saying that time does not travel, and that the dimention does not move, but instead objects travel through that dimention.
The dimention, is, therefore, immovable, static, if you will. If time doesn't move, it just exists. Time is.
So, if time does not 'progress' in empty space, I have to ask my self what this means.... What is empty space? What is nothing? HERE is what I cannot define. I cannot define nothing, except to say what it is not. Nothing is not anything. That is the farthest I can go. If there is an abscense of anything, then when I say that 'time does not progress in a complete vacuum, what I am really saying is 'If there is an absence of anything, then there is not anything to progress, or specifically, entropy cannot occur on an absence. That's seems obvious, in hindsight.
So, to summarize, time does not progress in a vacuum, nor does time progress anywhere else, or nowhere. Rather, time is.
I'm glad we finally cleared this up.
Post by
217797
This post was from a user who has deleted their account.
Post by
64812
This post was from a user who has deleted their account.
Post by
MyTie
Time is nothing more than a unit we measure with. that's all I use it for :)
Actually we use entropy to measure, not time.
Post Reply
You are not logged in. Please
log in
to post a reply or
register
if you don't already have an account.