Previously, previously, previously, previously, previously, previously.
Here's a video of what appears to be its bigger brother; check out 18:20 for what I can only describe as a train built on top of a train.
It's trains all the way down
I have lived long enough for fantasy with toys to become reality?
What makes it a “robot?”
What makes it not a robot, dimwit?
A trained robot, no less!
It ought to have a giant sound system blasting robot gandy dancing songs.
Here you go.
What the hell is that shit?
Why are the ties so close together?
As to the robot question, the issue is whether a robot must by definition have agency.
No. People call things like this a robot all the time.
Using concrete ties and setting them closer together let you run a faster train on the line.