I don’t know shit and everything I thought I was right about is probably wrong
Almost everyone once thought the big bang was the beginning of everything and started from a singularity. Now we know that there never was any singularity and that cosmic inflation preceded and set up the big bang.
We also know the now observable universe contained a significant amount of space at the time of the big bang. It was a minimum of 2 meters in diameter, and probably much bigger. Of course, the full universe would have been far bigger.
Almost everyone once thought the big bang was the beginning of everything and started from a singularity. Now we know that there never was any singularity and that cosmic inflation preceded and set up the big bang.
I didn’t realize our theories have changed regarding this. Do you have a good source for an idiot like me?
There was a prior state of the universe before the big bang known as “cosmic inflation”. This prior state lasted an unknown length of time.
https://bigthink.com/starts-with-a-bang/evidence-universe-before-big-bang/
We also know the now observable universe contained a significant amount of space at the time of the big bang. It was a minimum of 2 meters in diameter, and probably much bigger. Of course, the full universe would have been far bigger.
https://www.forbes.com/sites/startswithabang/2021/08/25/how-small-was-the-universe-at-the-start-of-the-big-bang/?sh=7e6c19735f79
https://www.forbes.com/sites/startswithabang/2018/07/27/there-was-no-big-bang-singularity/