I do a lot of walking (and running) around the city and lately I've been noticing that many Chicago sidewalks are polka-dotted. See? This is a stretch of Belmont Ave near Clark. Now I've pointed this out to people and most say, "Well, that must be gum". Could be but that seems like a LOT of gum to be left right in the middle of the sidewalk. Do that many people do that? Also, I never see any gum being in the state of partially melted to the sidewalk. I only see flattened black dots. Why are all the dots black? If it's gum, does all gum turn black in the sun or is everyone chewing Blackjack Gum?
Maybe aliens left the dots and are just waiting for us to connect them to receive a secret message. Maybe it's instructions for building a transporter or a time machine.
Well, anybody reading out there, I'm curious what other theories you might have as to the source of the polka-dots.
I think it's gum.
ReplyDeletehttp://cityroom.blogs.nytimes.com/2010/02/25/those-little-black-gum-dots-busted/
but I don't know....some other things I read said it was tar used to fill the holes of the concrete in?