Knew it was Chicago. I really hate these things but I enjoy faking them out when I pass them. It’s the little things.
this post was submitted on 26 Mar 2026
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They have these on a college campus nearby. I once watched one of these things try to get from a walkway onto a road after a delivery.
It didn't just backtrack the way it came. It was looking for a sloping ramp, but the sidewalk ledge was too high for its tiny wheels. It kept going back and forth, retracing the same paths over and over, failing, then returning to the original location, turning around and doing the whole thing again. I stopped paying attention after 15 minutes of this.
It was like watching a drunk come out of a bar and stumble around trying to find his parked car.
Example #42069 of why relying on vision alone for navigation is a terrible idea. At these speeds a $5 ultrasonic SONAR would've prevented this.
It probably had one. The software just probably sucks
About that much for a time of flight sensor that is faster and more reliable than sonar. But add them both for redundancy is the best.
ToF will generally go through glass (as long as it's translucent to the relevant IR range).
There might be a solution in popular culture:
saw this on the local news.