

They’re basically trying to find the time to create duplicate UUIDs. UUIDs are randomly generated and assumed to be so unique and actually random across… well, everything, that no one even checks if they’re actually unique. They suggested they found one in 5 hours. The only maybe possible way I could think of to do this legitimately is to use some ridiculously powerful computer and still get very lucky.

I have an old laptop I use as a server, it sits on top of a cabinet in the corner of my room. One day I noticed it seemed like the space key was being held down all the time, but only past the login screen. I was about to buy a new laptop because I thought the keyboard was totally broken (and its kind of old anyway). Turns out an old Bluetooth keyboard in my closet that was paired to my laptop got switched on at some point and the space bar was being pressed.