Thanks. It seems like we're on the same page. Materialism surely meant something different before and after quantum mechanics. It's one thing to think matter is made up of something like mini billiard balls, as in the early-modern, mechanistic view which goes back to the ancient Greek atomists. It's another thing if matter ends up being ghostly and wildly counterintuitive.

But we shouldn't commit the god of the gaps fallacy and use quantum weirdness as an excuse to be lazy or to fall for paranormal possibilities which aren't independently backed up with enough evidence. So I'm not sure what you mean by "all sorts of possibilities."