The video itself is a super condensed version of his book primarily aimed at the Youtube audience demographic, the book it is based on probably goes much further into depth.
> Know all the possibilities, think about the worst-case scenarios, and then find ways to eliminate the intolerable ones.
> Diversify
> Put deferred gratification ahead of immediate gratification so you will be better off in the future.
> Triangulate among the smartest people possible
Each of these have varying degrees of paragraphs detailing their nuance, but they all come back to the point of making personal decisions to navigate a decline rather than changing the system of decline.