You don’t need to resort to QM for an example of that dilemma, “do objects vanish when we stop looking at them?” is another such debate, but ultimately it doesn’t make much difference either way so I say just assume they do since its mathematically simpler.
Assuming that objects do vanish when you stop looking at them is much simpler?
Assuming that objects do vanish when you stop looking at them is much simpler?
Just noted that in an edit, it was a typo.