Definitely, there are some ideas on at least not wasting the time on stepping thru and instead having "rewindable" debug recordings, but then that's still not s

Definitely, there are some ideas on at least not wasting the time on stepping thru and instead having "rewindable" debug recordings, but then that's still not show you visually that, e.g., this whether the interleaving is forming the unexpected (by you) sequence of A1B2B1A2.