Before you start looking for evidence of a source, you need to show that the phenomenon actually exists. That has not been established, IMHO[1]. This is like speculating about where "Nessie"[2] came from when you haven't even shown that there is a "Nessie" yet.<p>[1] <a href="https://www.nytimes.com/2024/03/18/us/politics/havana-syndrome-brain-studies-nih.html?smid=nytcore-ios-share&referringSource=articleShare" rel="nofollow">https://www.nytimes.com/2024/03/18/us/politics/havana-syndro...</a><p>[2] <a href="https://en.wikipedia.org/wiki/Loch_Ness_Monster" rel="nofollow">https://en.wikipedia.org/wiki/Loch_Ness_Monster</a>