back in 18 & 37 some US congress bearded guy w pot belly & a funny suit sponsored a motion to close the US patent office,because in his pinhead ego,'we have invented everything it is possible to invent'
top speed of the fastest train back then was????? guess....
37 MPH,,,,,,send michael j fox back in his spacesuit with the walkman blasting congress guy fatso with eddy van halen guitar DBs and riffs.
congressman,,,there will be a vast civil war in the 60s,a hundred years later there will be a war where trains fly at 600 miles an hour,most americans will own small trains that run on rubber wheels,going 70 miles an hour,
YOU SIHHRRRRR,,speak of imPOssibilites! do not be so prepOSTEROUS with me again,else I should summon the capitol guards,,, coffcoffcoff.
the short answer boys,,never say never.