I looked up visual snow, and it's not like that. I don't have blurred vision. It's not intrusive. It's been described very well on this thread, and I remember being very small and asking about them. Weirdo was the consensus diagnosis in my family:)
Looked up the science thank you @SerendipityJane , which confirms what many on this thread can hear is recognised and quite normal as a result of magnetic electricity. I have no doubt I have this wrong, but it's enough for me it's an effect of human cause.
What would be interesting is research into the hum today compared with many years ago. To know where the hum is stronger, where people are more affected, is there a correlation with adhd and similar being diagnosed, any health issues, allergies.
Does the onset of Mobile phones everywhere make it worse, the air we see somehow affected by sound waves bouncing, wifi etc?
What about AI and the churning of data centres destroying the enviroment everytime AI is used. Chatgbt.
There have been attempts to block the hum. Unsuccessful, really. I can't stand the hum of electric sockets even when off.
It's all so interesting.