Note that, on page 1 of this thread, I also said: ‘The heat death of the universe is […] the end that never ends, just as the Big Bang is the beginning that never began.’
How can the beginning have never begun? Well, consider this passage from Nietzsche (as mistranslated by Kaufmann!):
“Lately one has sought several times to find a contradiction in the concept ‘temporal infinity of the world in the past’ (regressus in infinitum): one has even found it, although at the cost of confusing the head with the tail. Nothing can prevent me from reckoning backward from this moment and saying ‘I shall never reach the end’; just as I can reckon forward from the same moment into the infinite. Only if I made the mistake—I shall guard against it—of equating this correct concept of a regressus in infinitum with an utterly unrealizable concept of a finite progressus up to this present, only if I suppose that the direction (forward or backward) is logically a matter of indifference, would I take the head—this moment—for the tail[.]” (Workbook Spring 1888 14 [188] = WP 1066, with added emphasis in underlined script.)
The manuscript actually reads “infinite progressus up to this present”… The Big Bang as a beginning that never began actually reconciles the concept of a regressus in infinitum with the likewise realisable concept of a finite progressus up to this present!
(Quote source: https://ilovephilosophy.com/viewtopic.php?p=2803090#p2803090)