When someone starts asking questions that begin with "Yeah, but..." or "What if..." after you've given them a simple and straightforward answer, then that person is overthinking it.
You don't need to know how a watch is built in order to know what time it is.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.