What is metadata, exactly?
"It can see that you've requested, for example, wikipedia.org, even if it can't see which page your connected to."
I searched for 'peanut butter' on Wikipedia and my browser address then contained the following text:
"https://en.wikipedia.org/wiki/Peanut_butter"
Doesn't that text get sent to the ISP, in plain? Similarly for Goggle searches, eBay searches, etc?