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climbing

A Knowledge Map of Climbing Books: 60+ Books from Training Science to Mental Philosophy

Climbing books don't exist in isolation — they represent competing schools of thought, philosophical differences, and knowledge gaps. This post maps the relationships between 60+ books to help you pick the right one to read next.

investing

I Saw This 2x ETF System on Threads — It Comes From 3 Books

A Threads post by @jj.investnote laid out a 2x leveraged ETF system built on three books: 60% 2x ETF + 40% cash, Beta=1.2 target, ±10% rebalancing trigger, and a crash protocol.