I don't think viewing from someone else's perspective is comparable. That is a matter of interest. You can do it sync. Concurrency is more complex as it is mul

I don't think viewing from someone else's perspective is comparable. That is a matter of interest. You can do it sync. Concurrency is more complex as it is multiple things at once, with no guaranteed order of instructions which makes the modelling so much more difficult and introduces explosive amount of edge cases.