I wonder what they have in mind for how stations will offload/onload capsules onto the loop. That will be heck of an engineering problem to solve - ultra high safety, pressurized environment, fast turnaround times...

My initial thought was they would have switches on the track like a normal train and capsules would veer off. But I bet they would come to a stop on there own and then get lifted vertically off the train and into a decompression area where they'd cue up.