In contrast to Pascal's Wager Triangle, Pascal's Triangle Wager argues that maybe God wants you to draw a triangle of numbers where each one is the sum of the two numbers above it, so you probably should, just in case.
Isaac Asimov's Bible guide convinced me that abrahamic religions are mostly made out from stuff either from Mesopotamia (Sabbath, Eden, the floods) or myths coming from later cults (e.g. Greece).
I don't know about the shrooms, my reading of the old testament made me think it started with some old guy trying to stop his nomadic desert tribe dying of anything too stupid by telling camp fire stories with some sort of message. The whole 'god will make the ground open up to swallow you and your family if you screw up' is a desperate attempt to scare them into not doing stupid things like slaughtering too many of their livestock at once, or eating shellfish whilst wandering around in a desert.
The stories get retold, changed and embellished over generations before being written down, and you end up with the weird mess of basic survival tips, animal husbandry, heroic stories and mystic fluff that is the OT.
The new testament is just the story of a fairly chill guy, with a slight messianic complex, wandering around with his mates and suggesting people be nice to each other, put through a similar transformation.
This presumes some type of "pure" original religion — which indeed some people believe — as opposed to an evolving understanding that is relevant in each generation.
Pascal was a famous thinker of their time, particularly in mathematics.
Two of the ideas they're remembered for are Pascals Triangle and Pascals Wager.
Their triangle is a helpful tool for combinations of things. Their wager is a (kinda bad in my opinion) argument for why you should believe in the Christian God.
Pascal's triangle. This describes how to expand expresions of the form (a+b)^n as well as to compute how many ways there are to pick k objects out of a set of n (ignoring order.
This triangle is computed by starting with 1 at the tip, then having each element be the some of its 2 parents (except the diagonal edges with only one parent, which remains as 1)
Pascal's wager. This is a theological argument for a belief in god that goes "if you believe and god doesn't exist, nothing happens. If you don't believe and he does exist, you suffer for eternity. The logical choice is therefore to believe"
The natural conclusion is therefore to believe in all gods. If procelatizing happens in just the right way, and no one realizes people are talking about the same god, you end up with a triangle of polytheists, where the number of gods they believe in is given by Pascal's triangle.
Brilliant! This is one of those things that when you see it, it seems so obvious that you wonder how nobody thought of it until now. But it takes someone like Randall to pluck it out of the space of unexplored ideas and present it perfectly.
I always took pascals wager as just being about some nebulous creator type of thing with no real specifics because the argument can't really handle specifics.