this speaker has written several books connecting fluoride to depopulation using statistics from national governments: https://www.ureka.org/videos/watch/15903/i-was-offered-millions-to-stop-exposing-depopulation-kevin-galalae

i don't agree with some of his conclusions - but the data is interesting anyway.

I like the idea of Emoto's work, but have never seen it repeated and never seen it properly reviewed.