occam's razor, n.All

Hitchens's razor: "What can be asserted without evidence can be dismissed without evidence".

Hanlon's razor: "Never attribute to malice that which is adequately explained by stupidity".

Occam's Razor is Latin for “Keep it Simple, Stupid”

Occam's Razor is just a useful heuristic, it should never be used as the final arbiter to decide which theory is to be favored