https://medium.com/starts-with-a-bang/what-happened-before-the-big-bang-ef36f2bb2ad1 https://medium.com/starts-with-a-bang/what-happened-before-t... "we not on

https://medium.com/starts-with-a-bang/what-happened-before-the-big-bang-ef36f2bb2ad1 https://medium.com/starts-with-a-bang/what-happened-before-t... "we not only don’t know whether there was a singularity at some point in the very distant, pre-inflation past, or whether inflation was truly eternal, we don’t even know whether inflation occurred for less than a yoctosecond or more than the present age of the (post-Big Bang) Universe! Our prospects for finding out, furthermore, are quite dim, as — by its very nature — practically every model of cosmic inflation wipes out any information about the Universe that existed prior to the last billionth-of-a-yoctosecond before inflation ended, and our Universe began." "It may have been eternal to the past, there may have been a true singularity before it, or there may have been something else; as far as our current observations go, we haven’t even conceived of a way we could possibly know."