Self-balancing commuter pods ride old railway lines on demand

Sadly, monorails require different rails which are taller and thicker this would still apply to a smaller pod style device. I do not see how they could ever keep this balanced on these rails, and don't think the rails would hold up anyways. Additionally, the loop sidedness of the weight distribution seems to me like it can create major issues when the rails have been designed under the idea that it would be more or less equal on both.

This seems like just another person trying to reinvent the wheel because us Americans hate rail, even though the us was built on rail.