Of course, that sounds more like a skill involving reduction of friction and outputting as much power through the legs as possible than the more difficult act of also controlling a bike at those speeds.
You can forget the electro-magnetic cars Elon, just give me the vacuum tube and I'll jump on my bike. If I could sustain anything close to that in a vacuum tube I would probably ride rather than taking some cross country flights.
Of course, that sounds more like a skill involving reduction of friction and outputting as much power through the legs as possible than the more difficult act of also controlling a bike at those speeds.