Recent content by vasiladp

As I said above, an "infinite supply of energy" strikes me as absurd. Why bother conserving energy then?

I don't follow that. I thought the universe's age is known from studying light that emerged at the "beginning" of it. That implies our universe has a finite size. Distance=rate*time, and we know the time elapsed since the Big Bang, and we know the speed of light is a constant. So what you said...

Daniel Vasilaky asks do physicists know "how much energy the universe has"? An infinite amount seems absurd - no need for conservation laws and so perpetual motion would be possible. I'd say no to a negative amount also. So it'd be zero (I'd say probably) or a finite, positive amount (maybe)...