Universe 'likely to grow forever'

[SupremeSpod]

What does one photon look like and how long would it last?

[doodab]

Hmmm I think we'd need to understand the TOE before making such bold statements. We're just a bunch of monkeys on a rock, I don't believe we have the capacity to comprehend the real answers.

To be fair, the words you have highlighted are the BBC's, not the professors.

[Paddy]

Or not...

Is Time Literally Slowing Down and Disappearing From the Universe?

Tell me about it. Time slows down a lot after 3pm but speeds up again at the Thai massage where half an hour seems like ten minutes when it’s time to turn over.

[Lumiere]

so how can one invest in this thing

[scooterscot]

I don't believe we have the capacity to comprehend the real answers.

WHS

Or not...

Is Time Literally Slowing Down and Disappearing From the Universe?

Time is a human idea, it does not exist. Monkey.

[doodab]

Time is a human idea, it does not exist. Monkey.

Simply not true. The "flow" of time might be attributed to human perception, but even if you view the universe as an unchanging four dimensional whole the time dimension is special. Without it's specialness, concepts such as "the speed of light" (which limits the ability of one point in the continuum to affect what happens at another) couldn't exist in the form they do.

[scooterscot]

If the universe expands continuously, it must stretch the stuff thats already there. not the lumpy bits, but the 'glue' bits inbetween.

I have noticed that at night, when the northern hemisphere is facing away from the centre of the universe, my willy gets smaller, due to galactic gravity. In the morning, it gets stretched out again by the pull of the universe.

EO you're back! When did this happen?

[TimberWolf]

Simply not true. The "flow" of time might be attributed to human perception, but even if you view the universe as an unchanging four dimensional whole the time dimension is special. Without it's specialness, concepts such as "the speed of light" (which limits the ability of one point in the continuum to affect what happens at another) couldn't exist in the form they do.

It's hard to imagine a universe without time isn't it. There'd presumably be no causality for one thing, which is perhaps more fundamental than time itself and why there must be a speed limit, at least in a universe that was consistent and made sense for everyone.

[SupremeSpod]

It's hard to imagine a universe without time isn't it. There'd presumably be no causality for one thing, which is perhaps more fundamental than time itself and why there must be a speed limit, at least in a universe that was consistent and made sense for everyone.

Surely time is just a delta?

[scooterscot]

What does one photon look like and how long would it last?

The photon is effect.

How long would it last is analogous to how far a car would move if you pushed it. A long as the road is there for the energy to transfer to. Some photons last for millions of years, like the ones in the centre of the sun, they bounce all over the place before they can reach the road.

The speed of light is well understood, but I wonder, what is the speed of dark?