Hello there,

I dont think we are living in a black hole mostly because of what is known about black holes in the current day and age. For one thing, we have this thing we call "time" and it is still allowing the universe to evolve.

Hmm... Is time evolving the Universe, or is the Universe evolving time?

 

Hmm... Is time evolving the Universe, or is the Universe evolving time?

Hi,

Well perhaps you bring up an interesting question whether you meant it or not. That is, how do we know how long a second is. We dont. We invented what we call a second and we use that as a measure of the evolution of systems. But how do we know this second is the same as the next second, ff everything evolves at a different rate in another time system we cant tell because we only see things from our time point of view.

 

In the way we understand Time today, it's not fixed, it's relative to motion and the curvature of space. Clock ticks differently from earth orbit (GPS system) and across the universe.

What about light speed?
http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/speed_of_light.html

 

Hmm... Is time evolving the Universe, or is the Universe evolving time?

Neither, time is more like an illusion arising from the interlacing of entropy, irreversible processes, and emergent phenomena.

Hi,

Well perhaps you bring up an interesting question whether you meant it or not. That is, how do we know how long a second is. We dont. We invented what we call a second and we use that as a measure of the evolution of systems. But how do we know this second is the same as the next second, ff everything evolves at a different rate in another time system we cant tell because we only see things from our time point of view.

The second is precisely the time it takes light to travel from one point to another by some fraction of that so it's actually pretty well defined. The fact that it's arbitrary is almost irrelevant, causation is real and can be quantified.

 

The second is precisely the time it takes light to travel from one point to another...

Only within a defined reference frame. Time and space are relative. c is not.

 

Only within a defined reference frame. Time and space are relative. c is not.

Hi,

The limit of the speed of light is such an amazing thing. I have to wonder if it is regulating everything or just telling us that things happen to be regulated in the universe we know.

 

Neither, time is more like an illusion arising from the interlacing of entropy, irreversible processes, and emergent phenomena.



The second is precisely the time it takes light to travel from one point to another by some fraction of that so it's actually pretty well defined. The fact that it's arbitrary is almost irrelevant, causation is real and can be quantified.

Hi,

"Almost irrelevant" still leaves much to the imagination.
A sequence is still a sequence regardless how long it takes to look at one element to the next. To us in everyday life it may not matter how fast we proceed from one to the next as long as we always perceive the interval to be the same, but because there is a chance that it may be different from another point of view, that could unlock another mystery that we had sought to figure out but could not so far.
If it was totally irrelevant, i dont think we would have relativity, which really says that it is not.

 

Hi,

The limit of the speed of light is such an amazing thing. I have to wonder if it is regulating everything or just telling us that things happen to be regulated in the universe we know.

There is a neat game I like to play in my mind.

Imagine you are a photon. What does the universe look like?

 

There is a neat game I like to play in my mind.

Imagine you are a photon. What does the universe look like?

Timeless...

 

Timeless...

Literally.

And, spaceless as well.

 

Literally.

And, spaceless as well.

Hadn't thought about space before... but being a photon would make for the perfect observer. There would be no distinction between past, present and future. Just one big now in which every possibility could be contemplated simultaneously.

 

If you were moving at c........wouldn't most of the light in the cosmos Not catch up to you? So at least the space behind you would be dark? Would a small circle in the direction that you are moving....be the only light source?

 

Hadn't thought about space before... but being a photon would make for the perfect observer. There would be no distinction between past, present and future. Just one big now in which every possibility could be contemplated simultaneously.

Yup.

 

So at least the space behind you would be dark?

There would be no space behind you. Or in front of you.

 

Hadn't thought about space before... but being a photon would make for the perfect observer. There would be no distinction between past, present and future. Just one big now in which every possibility could be contemplated simultaneously.

In fact, you wind up occupying an infinitesimally small space with infinite energy density (the mass/energy of which consists of that of the entire universe).

Kind of like the singularity at the center of a black hole, no?

And thus, the thread comes full circle.

 

In fact, you wind up occupying an infinitesimally small space with infinite energy density (the mass/energy of which consists of that of the entire universe).

Kind of like the singularity at the center of a black hole, no?

And thus, the thread comes full circle.

Joey, if you're in the habit of having this sort of conversation with your daughter, she's going to grow up to be a rather interesting person... ... and God help her future boyfriend...

 

Joey, if you're in the habit of having this sort of conversation with your daughter, she's going to grow up to be a rather interesting person... ... and God help her future boyfriend...

I wish. She's probably going to be a performance artist or a fantasy fiction writer.

 

Here are two more games for you:

1. You're an astronaut who just fell past the event horizon of a black hole. Look up: what do you see?

2. Forget about speghettification. How long till your atoms hit the singularity?

 

I wish. She's probably going to be a performance artist or a fantasy fiction writer.

Nothing wrong with that either... from what you're saying, she has a creative streak... just like her daddy...

 

1. You're an astronaut who just fell past the event horizon of a black hole. Look up: what do you see?

Mhhh... light cannot escape, and therefore it must be swirling around, hitting particles falling into the black hole. Therefore, your field of view will be entirely lit... at what color/frequencies is beyond me.

2. Forget about speghettification. How long till your atoms hit the singularity?

From an outsider's perspective, it would take forever. From your own perspective, it would obey the f=m*a equation ...

But those are only guesses...