I remember reading this RAND Corp article published maybe 60 years ago about the deep underground highspeed transit system that goes 10K MPH in vacuumed tubes.

I remember reading this RAND Corp article published maybe 60 years ago about the deep underground highspeed transit system that goes 10K MPH in vacuumed tubes. I guess that was the origin of Musk’s hyperloop but my understanding is such system is actually darkly operational connecting the world for DUMBs?