LH, as we evolve as a species, the notion of a god might change.

I also use the word "faith" to imply addiction. Addictions have been known to
change the physiology of the brain.

It's possible that believing in Santa Claus doesn't hurt others. OTOH what does
it do to an adult who still believes?

Believing is cheap. Anyone can do it. But proving something to be scientifically
accurate is much more difficult and far more useful.