That's what I was going to ask. But from https://news.ycombinator.com/item?id=20666140 https://news.ycombinator.com/item?id=20666140, cited by sls: > They're

That's what I was going to ask. But from https://news.ycombinator.com/item?id=20666140 https://news.ycombinator.com/item?id=20666140, cited by sls: > They're using "Big Bang" to mean the hot, dense, rapidly expanding state that is the earliest state of the universe for which we have good evidence. In models with inflation, this state occurs at the end of inflation, when "reheating" transfers all the energy stored in the inflaton field to the Standard Model fields (quarks, leptons, and radiation).'