Here, we execute 100 coroutines in a loop.
If we were forking threads for each of these coroutines, this would be expensive
in terms of memory and CPU time. However, the threads are determined by the
Dispatcher
, not the coroutine itself. While we have 100 coroutines, we have one
Dispatcher
, and it happens to have one thread. So, all 100 coroutines will
run on one thread, switching between the coroutines when Kotlin encounters a
suspend
function.
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