Occam's razor - Wikipedia
"
Occam's razor ...is the problem-solving
principle that "entities should not be multiplied beyond necessity",
[1][2] sometimes inaccurately paraphrased as "the simplest explanation is usually the best one."
[3] The idea is attributed to English Franciscan friar
William of Ockham (c. 1287–1347), a
scholastic philosopher and theologian who used a preference for simplicity to defend the idea of divine miracles. This
philosophical razor advocates that when presented with competing
hypotheses about the same prediction, one should select the solution with the fewest assumptions,
[4]"
If I see some dark and shadowy figure peering at me through the window at night, which one is more likely: a supernatural demonic being who's existence cannot be proven inside of a scientific setting and who only exists within the confines of one particular religious system's beliefs, or some guy looking to break into my house?