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$\begingroup$ Thank you for such a detailed and considered answer. You might've overlooked the "layman" element of the question - at least, the mathematics goes a long way over my head - but I appreciate that there's probably a limit to how much a layman can understand about such things. $\endgroup$
– GDVS
Commented Nov 27, 2013 at 12:22
$\begingroup$ Hmm - my apologies. I thought this would be a digestible chunk of cosmology. The real point I wanted to make is that it's an integral rather than a simple product between the age of the universe and the speed of light. Because different things act differently with expansion, you get "phases" that the universe goes through. The rate of expansion changes depending on which phase it happens to be in. Feel free to keep posting questions - I (and others) would be happy to try to make things as understandable as possible. $\endgroup$
– astromax
Commented Nov 27, 2013 at 18:07
$\begingroup$ @astromax +1 for the pretty formulas though. $\endgroup$
– iMerchant
Commented Feb 7, 2018 at 2:21

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