Re: Infinities in Physics: was-> Re: OT: Universe Born in Black Hole Explosion?

Rich wrote:

[...]

> OK, there are no infinite masses in the universe (or on or around the earth).
> If there were we would be dead or never exist, being subject to infinite
> force, or we would be inside or falling into (at slow motion even) a black
> hole.

Let me ask the following questions:
What is "dark matter"? and how much of it is there in the universe.
How is hydrogen created in the universe? and how much hydrogen is out there?
Is there a limit to the universe?
If no, how far does it extend?
If yes, what is outside the universe and how much of it is there?
How many "out there" are there out there?
How do we know "our" universe isn't inside a black hole?

How does infinity/infinite apply to some of those questions?

> There is no infinite energy in the universe or in or around the universe.

you can't possibly know that.
what energy is beyond of what we see or can measure is totally unknown.

> If there were the universe would never cool enough for matter to form,
> or if near or around the earth we would be vaporized, and probably be
> turned into free quarks (or maybe buy one take one).

I don't think the energy needs to be "spewing" out (or radiating) constantly.



-- 
Robi
(2.9#@ 2.75 yrs)