Basics

Why the same transfer costs cents on one network and twelve dollars on another, and why "pending" usually means one of three things.

Twelve words that are worth exactly as much as everything they control. What they actually are, and where they should live.

About an hour, roughly ten dollars, and six steps. The buying is the easy half; the part most people skip is the part that matters.

The same token exists on several networks, the addresses look alike, and choosing the wrong one is the most common way beginners lose funds.

Bitcoin, USDT and a token launched last Tuesday are not the same category of thing. The difference is who, if anyone, issues them.

A shared ledger, a key that proves something on it is yours, and nobody to call if you lose that key. Everything else is detail.