Next Paul Miller experiment suggestion: only use dial up/2G
First, there is the ongoing year-long no internet thing he's doing.
After he's done with that, here's an idea if he wants to do something similar: Instead of the usual broadband, access the internet only using 56K (or 2G on his phone). Do it for a month, or perhaps another year. So instead of no internet, there's frustratingly slow internet. And then write about that.