Linked Questions

3 votes
5 answers
1k views

Is the human mind capable of distinguishing between time running forward and time runing backward? [closed]

The title really says it all. Would we be able to feel anything if time started running backward?
overkill's user avatar
  • 149
5 votes
3 answers
3k views

What would a fractal universe tell us about Time?

To begin with let's look at what is known as the coastline paradox. Briefly it goes like this: If you measure the circumference of Britain with a 1km long stick, and then do the same with a 100m long ...
christo183's user avatar
  • 2,447
2 votes
7 answers
8k views

Is time travel only possible if the world is deterministic?

Let's say that true free will (and not only the impression of free will) is only possible if the world is not deterministic (meaning that the future of universe in not determined by its state at an ...
Julien's user avatar
  • 105
3 votes
7 answers
549 views

How can time have a beginning when a beginning needs time?

I think this is not the first time this question has been asked. Nevertheless, I ask it. Often when asked if there was a time before the beginning of time, the North pole analogy is put forward. It's ...
user avatar
2 votes
6 answers
763 views

Problems with backward time travel

In the beginning of this SEP article is the discussion of contradictions a backward time travel may bring (e.g. the classical grandfather paradox) and possible ways to "eliminate" them. My question is:...
user132181's user avatar
  • 1,098
1 vote
8 answers
794 views

Time travel and changing the past

Many philosophers argue that time travel is possible without causally affecting the past? Is it even possible to time travel without causally affecting the past. The grandfather paradox is an ...
PhysicsEnthu's user avatar
1 vote
3 answers
680 views

How does biological evolution work in the block universe/b-theory of time?

The b-theory of time is often described as a film reel where the whole reel exists, but we can only view one frame at a time. The problem I have with this analogy is that it starts to feel too ...
Physeo's user avatar
  • 11
0 votes
1 answer
266 views

Time Travel and Virtual Particles correlation?

Virtual Particles in Quantum Physics are particles that can form in any place, including a vacuum, and are created in a pair of particles opposite each other, and are usually eliminated. When these ...
Alien's user avatar
  • 125
2 votes
4 answers
260 views

Any good theories on the nature of time in which time is not fundamental?

I've noticed that most of the very successful formulas in physics, once you break them down, contain several references to quantities of time. And it has really begun to bother me that once you start ...
Thor's user avatar
  • 148
0 votes
2 answers
208 views

Does an Eternal Multiverse Undermine Causality, Time and Free Will? [closed]

An eternal multiverse is a static multiverse that just exists and is presented as a series of static moments, and each moment is separated by proper time (in the relativistic sense) and has many ways ...
Mind's user avatar
  • 109
-2 votes
3 answers
143 views

Can subparts of the universe travel back in time? [closed]

Came here after the question was closed on Physics stack exchange. An event requires 4 coordinates - spatial x,y,z, and time t. Multiple objects cannot occupy the same x,y,z at the same time t. Given ...
Sandip Chitale's user avatar