Thx for the clarification. Yes - there actually is no real issue here. I just
assumed somehow that arc/orc also passes the ownership somehow to the new
thread, so it doesn't get deleted if the thread survives. I was thinking it may
work like ref counting, similar to shared_ptr on c++. Or to maybe get some
warning, as I usually got a lot of warnings for async when using stack
variables. I just wanted to create some simple use case for multi threaded
memory and wanted to show it, as you need to take care of different things with
arc and without it.
