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Can someone ELI5 hot streams vs cold streams? I'm trying to wrap my head around Flow and I don't quite get it

hot streams start producing _when you create them_, e.g. with `produce` -- it immediately starts generating elements, although it will stop at the first `yield`

but cold streams don't start producing until their _terminal operation_ is called -- you can `map` them, `filter` them, etc., and no processing happens, until you call something like `collect`

Oh well that's easy lol. When I was searching for explanations the articles got really into the weeds on the issue...

Can I ask why SQL queries are possible to be represented at a `Flow` in SQLDelite? I'm assuming its to make queries observable similar to Room?

<https://github.com/square/sqldelight/tree/master/extensions/coroutines-extensions>

That's precisely the explanation I needed, thanks

<https://medium.com/@elizarov/cold-flows-hot-channels-d74769805f9>