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Can anyone explain to me why coroutine exception handling is treated differently between Job and Deferred? Doesn't initially make sense to me why this is desired: <https://github.com/Kotlin/kotlinx.coroutines/blob/master/docs/exception-handling.md>

what exactly confuses you?

`launch` is fire-and-forget computation without a result. If it is failed, no one will ever know about it, so it should be reported somewhere (to exception handler).

Meanwhile `async` is *not* fire-and-forget. It is a computation with *result* which should be *consumed*. And if it will be consumed, then exception will be eventually delivered and handled.

And if someone called `async` and haven’t called `await` it is probably a bug.

that makes sense. I just needed someone to explain it. Thanks