S1E11 - The Real Cost of Guarantees—and Where Bitcoin’s Promise Ends

https://www.magicinternetmath.com

In this solo “Fundamentals of Fundamentals” episode, I dig into the real economics of guarantees—what they are, why they always cost something, and how misunderstanding their boundaries breeds bad decisions. I walk through intuitive examples (from a 3 PM pickup promise to banks and letters of credit) and the institutional mechanics I used to run—hedging market exposure, volatility assumptions, rate sensitivity, and why delivering a financial guarantee shows up in someone’s P&L. 

Then I pivot to Bitcoin’s unique guarantee: protocol rules that don’t change and funds spendable with...