Re: Can this inform the 5G debate?
"They just don't realise that visible light is way closer to the pointy end of the spectrum than 5G waves."
That's being overly generous. Most don't accept that light is electromagnetic radiation. Because "you can't see EM waves, that's why they're so dangerous..."
These are the types with foil covered walls and chain mail curtains (to block the EM). I pointed out that light was getting in, thus at least some EM was coming through.