I need a recommendation for a website for realistic planning of events such as a nuclear attack or a total collapse of the dollar.

I don't want any that indulge in TEOTW fantasies or put emphasis on armed conflicts with the unprepared. As Hikermor said, "Laying in a large armory and the required ammo is a massive misuse of resources better devoted to other items."

Jeanette Isabelle
“Trust me, this is not gonna end well!” — Pleakley, Lilo & Stitch