No idea if this is true or not, but the part about Fermi´s paradox is fascinating, and could be another possible "solution" to it.
The idea is that our galaxy is situated inside a large cosmic "void", within which intrastellar communication and space travel is extremely difficult. So if aliens exists somewhere inside this void, we might never encounter them. Also, the void is of no particular interest to advanced alien civilizations that might exist outside it, which explains why we never hear from them, either! In plain English: Homo sapiens (the crown of creation, goal of evolution, blah blah) really does live in a universal backwater...
Another portion of the video discusses the expansion rate of the universe, dark matter and such.
Nonsens. Att vår galax skulle vara isolerad i ett kosmiskt tomrum på två biljarder ljusår stämmer ju inte. Har han aldrig hört talas om Andromedagalaxen eller vår lokala galaxhop'?
ReplyDeleteSorry, två miljarder skulle det vara.
ReplyDeleteJo, det har han. Han menar att hela vår superhop är en del av "the void", och att avståndet mellan galaxer och hopar i andra delar av universum är mycket mindre.
ReplyDelete