Why doesn’t the US have freeways with no general speed limit, like the German autobahn?

So I usually cross-post to Medium only my best (read: favorite) Quora Answers (regardless of how many upvotes they received), but for some reason, my answer to this question has by far the most upvotes from anything I’ve ever written: a whopping 2.5K as of April 2017. Well, that’s “whopping” for me, anyway: despite being a 2x Top Writer, none of my answers have this many upvotes. Go figure.

So here it is in its original form, entirely unedited, if only because, well, people seem to…