By the end you will own a four stop route that turns any protocol's name into a clear mental model in about twenty minutes, and you will run it once, in full, inside this lesson.
Someone drops a protocol name in a chat you respect. Everyone nods, so you nod. Later, alone, you open the website: a hero line, four buzzwords, a docs link, and ninety seconds later you close the tab knowing nothing.
House buyers tour like that and come home with feelings. An inspector walks the same rooms with a route: foundation, plumbing, wiring, roof, and twenty minutes later can tell you what the house IS. Fluency is not knowing every protocol. It is having the route. This lesson hands it to you.
The route has four stops, and each stop exists to answer exactly one question. What is the machine. Is anyone actually here. Who is here. What does holding the token get you. Answer all four and you can explain any protocol to a friend. Tap each stop to learn its question and its tool.