Most of the discoveries/advances in human history weren’t achieved through evidence; there was a suspicion, if not a manifestation, that something was so, which in turn lead to it being studied and practiced until the reasons why it was so were understood. Some thing's are still not understood, though that doesn't invalidate their efficacy. Acupuncture being a good example - laughed at 20-30 years ago but now (tentatively) endorsed by the NHS and the World Health Organization (though how it works is still not understood).
It’s the capacity for us to leap from what might be to what is, and to then demonstrate how, which is a human quality worth cherishing. Closed minds are like houses with closed doors and shuttered windows - their inhabitants living in a world where the only consolation is that it’s so dull in there that there’s never any danger of a surprise (or a rethink). What was it that the ‘shiftless, roving and magotie-headed’ John Aubrey said about Stonehenge?
“I have brought (them) from an inner darkness to a thin mist.”
So here’s to the shiftless, roving, magotie-headed dowsers, antiquarians (modern or otherwise), time travellers and quantum physicists everywhere; if they bring us from an inner darkness to even a thin mist so much the better :-)