Goodmorning Lyx2NO,
The question is "can it?". I think it can with a certainty of 99.999999999%. Others, however, believe anything they personally don't understand intuitively is caused by unnatural forces. So, At what point should we look for a non-materialistic explanation?
If we equivocate "non-materialistic" as super natural then I would say I agree with you. However, in my opinion there is NOTHING that exist in nature that is supernatural. The fact that it exist means it is natural in my opinion. And if this is so then it seems reasonable to conclude that if something exist that is non-material then it is natural too.
Humans have yet to discover the origin of the fundamental forces, from whence energy came into being, or how recreate life from non life. Why there is stuff,(Higgs).
There may be nonmaterlistic explanations yet to be discovered. Hogwash you say? Fine you may be right, I may be crazy, Oh but it just may be a lunatic your looking for!!!!
I think it can with a certainty of 99.999999999%
Why not go the whole enchilada?