Cheatsheet recap 1 / 3

One line per idea, in order. The pause-for-questions slide.

Idea	Remember
Mostly waiting	waiting is not work. stop paying for it.
One after another	correct, and five times slower than it needs to be.
Two timelines	same code, same thread. five waits at once.
Threads vs tasks	threads for cpu. async for i/o.
The async keyword	async fn returns a plan, not an answer.
Where it pauses	.await means pause here, not stop everything.
Nothing runs yet	futures do nothing unless awaited.
Future is a trait	ready, or ask again later. that is the whole trait.
A state machine	you write straight lines. the compiler writes the states.
It cannot move	you read Pin in signatures. you rarely write it.

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