Transportation in general really I guess is what I like about technology. 20 years in the past I'm pretty sure we still had cars like from the Ford and Chevy companies. I think we still had coal trains and we began transporting a bunch of people by train like in subways and things. But if you want to go back at least 20more years before that we had just start getting cars but they didn't go any faster than at least 35 mph. Now we have cars that go way faster than that now.
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