Substitute “high speed rail” with “Lunar space station at a Lagrange point that can lift materials cheaply off the moon”.
“... “Lunar space station at a Lagrange point that can lift materials cheaply off the moon”.”
I’ve been reading about this more than thirty years.
Ought to have been done by now.
Sorry, won’t work. L1 is unstable, and it would need a lot of energy to heep anything parked there from falling elsewhere.