4000 mph Mag Lev Train, is it possible?

[n72.75]

Wouldn't it be cheaper to build a suborbital transit system?

 

[Hurricane]

Wouldn't it be cheaper to build a suborbital transit system?

Could be, according to my quick calculations.
That would mean NO super-expensive tracks, NO braking-related issues, etc.
IMO suborbital transits sounds more viable and safer.

 

[Gerdih]

They patented a technology to do the vacuum tubes or they patented the idea?