I had this same thought recently. I was in Oklahoma City and thought “I wish there was a place to go and talk about interesting things”

I think in the past people have done this with letter correspondence with people of similar interests.

I try to surround myself with people who are interested in similar topics but I can’t always. My wife glazes over on more than fifty percent of topics that interest me. My friends don’t always share every interest.

I guess an important follow up question is how random and which ideas?