A couple more 'thoughts' on this...
How many of "us" have asked others in our house/family/neighborhood
if they are hearing the hum too?
Are you afraid to mention it to others?---DONT BE. I've actually went
door to door in my neighborhood asking if they were
hearing/experiencing the hum.....
Even the people living next to the power lines were not hearing it.
we are a tiny tiny minority.
Rural or city doesnt matter.
seems most of 'us' pay more attention to nature than the average
I hear the hum exactly the same no matter where i go....earplugs have