And China invented everything themselves?
The ability to build stuff quickly isn't impressive. Just need the resources.
What's impressive is the technology to travel at 245mph for safe regular service.
Chinese GDP per capita will take a very long time to overtake the US. And thats if its viable to maintain such rapid economic growth. Just look at Japan and see how growth tapered off as it grew rapidly.
Perhaps you didn't pick up on the sarcasm of my original post but that is basically half my point - having built such a network in 4 years isn't that amazing when you consider the likely methods involved.
Technologically whilst mildly impressive, it is nothing other countries couldn't do, it's just the fact we actually pay workers, try and not let them die etc. that prevents such things being particularly sensible to try because they would cost so much.
There is nothing really technology wise preventing us doing the same thing here - it's just that it would cost far too much to be worthwhile. We can't just uproot peoples homes if we need the land for straigtening, stuff like that. Basically, it is more the conditions that prevent feasibility here, not the technology.
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