Cerenkov's latest activity

Then these three assumptions were proper to papers by Hawking and Penrose prior to the 1970 paper? Thank you. Ok, let's be specific...

I've been thinking some more about the Hawking - Penrose Singularity theorem and was wondering if you could help me gain a better...

I think the summary in Sabine Hossenfelder's new video is excellent. Many important points made, I have bolded two at the end that...

I humbly accept your compliment. :wink:

Why thank you, sbothy. :smile: But how can I be better informed than you if I've asked all the questions you had? We must be on a...

https://science.nasa.gov/dark-energy/ If memory serves Peter, to account for the speeding up of cosmic expansion scientists invoked...

Which may not be the case if the new analysis of type 1a supernovae holds up? Would you please explain what it mean if the Perlmutter's...

So I've tripped up on my use of terms. What I should have said was that the proof is mathematically valid, but, in accordance with what...

Ok, thanks for clarifying and explaining Peter. Now, just off the top of my head I seem to recall that there's a theorized scenario...

https://www.physicsforums.com/threads/the-singularities-of-gravitational-collapse-and-cosmology.968323/#post-6149795 It seems that I...

Thanks very much for your help pinball1970 and Ibix. So, let me see if I understand this. Perlmutter et al worked on the premise that...

Hello Peter I'm interested in the issue of the universe's apparent accelerated expansion and would like to learn more. Could you...

Thank you. I also take your point about BB nucleosynthesis. For that to happen the temperatures and densities must have been very high...

This is for PeterDonis' attention, in reply to him. But if anyone wants to pitch in with corrections, clarifications or explanations, I...

Ok, thanks. You needn't worry about me reverting to a kind of Newtonian way of thinking about this, btw. When I read your words above...