What must a sane person1 think regarding religion? The naive first approximation is "religion is crap". But let's consider the following:
Humans are imperfectly rational creatures. Our faults include not being psychologically able to maximally operate according to our values. We can e.g. suffer from burn-out if we try to push ourselves too hard.
It is thus important for us to consider, what psychological habits and choices contribute to our being able to work as diligently for our values as we want to (while being mentally healthy). It is a theoretical possibility, a hypothesis that could be experimentally studied, that the optimal2 psychological choices include embracing some form of Faith, i.e. beliefs not resting on logical proof or material evidence.
In other words, it could be that our values mean that Occam's Razor should be rejected (in some cases), since embracing Occam's Razor might mean that we miss out on opportunities to manipulate ourselves psychologically into being more what we want to be.
To a person aware of The Simulation Argument, the above suggests interesting corollaries:
- Running ancestor simulations is the ultimate tool to find out, what (if any) form of Faith is most conducive to us being able to live according to our values.
- If there is a Creator and we are in fact currently in a simulation being run by that Creator, it would have been rather humorous of them to create our world thus that the above method would yield "knowledge" of their existence.
1: Actually, what I've written here assumes we are talking about humans. Persons-in-general may be psychologically different, and theoretically capable of perfect rationality.
2: At least for some individuals, not necessarily all.
Physics has already given us better ideas that we could replace a belief in a time-continuous self with. If we choose not to use these ideas that better reflect what we know of reality, I wouldn't call it a heuristic, but instead choosing faith over what pure reason would tell us.
I'm gonna pull a Nesov on this one and say that belief in a time-continuous self can be thought of as a value/preference rather than belief. You care about your individual organism because evolution made you care about it, not because it is physically real (whatever that means).
Of course, similar reasoning can be used to show that observed particle physics is a Darwinian construct :-) Last I talked with Nesov about it, this was a big puzzle. Any news?