I've been subscribed to Veritasium for a long time but hardly watch the videos, ^this reminded me how much I'm missing out.
My personal favorite are the "Universe From Nothing" talks by Lawrence Krauss. The hypothesis is more or less outlined circa 33:00 in this video (pardon the account).
Entertaining for sure. I've just spen 1h and a half watching those videos. Amazing stuff. I always have had a great appreciation for math and people who are good at it and love doing it. Too bad I never liked it in school. At best I tolerated algebra and geometry. Hated analysis.