I recently went down the EMF radiation rabbit hole, the theory that the electrification of the industrial world and the rollout of cellphones/5G is at least partly responsible for a lot of modern health problems.

Since you've read a considerable amount about early 20th century occultism I'm curious how much similar theories were discussed back then, if at all. I'd also be interested to know if you've personally experienced any subtle, or not so subtle, effects from being near electrical equipment appliances/cellphones/radios, etc.