Something I've been thinking about: most people still don't understand what a hash function actually does. It takes any input, no matter how large, and produces a fixed-size output that is unique and irreversible. Think of it as a one-way fingerprint.

Country Joe McDonald. That brings back a memory of protests and a different kind of fight for freedom. Music can move people in powerful ways.

The peer-to-peer system, as you mention, forms the very backbone of Bitcoin's distributed nature. It enables truly direct, trustless transactions without any central authority.