We don't know who Satoshi Nakamoto was, where they came from, or where they are today. But here's what we do know.
"Cypherpunks write code. We know that someone has to write software to defend privacy, and we're going to write it." — The Cypherpunk's Manifesto, 1993
To understand why cryptocurrencies were invented, you first have to understand the problem they were meant to solve.