I don't usually comment on these types of posts, but there's one idea that I haven't seen in this thread thus far (although I haven't read every single post).
I'm a college professor, and am neither a historian nor a political scientist (I'm a physical scientist) but I associate with a lot of them. I am also very liberal, which isn't necessarily pertinent to this discussion but is honest.
To a person, nearly all of my friends who are experts are convinced that something very bad is on the horizon. We just elected an extremely weak, unqualified president and our nation is at odds right now. Britain is weak because of the Brexit vote. Russia and Turkey are strong. Terrorism will thrive under Trump (at least in my opinion), especially if he follows through on his plans to register Muslims in the US. The world is in a similar place (instability-wise) to where it was before the start of WWI, but now we have nuclear weapons, more effective chemical weapons, and long-range missiles. Some little thing (a la Archduke Ferdinand) is likely to happen that will start a major war, and millions are likely to die as a result.
This might sound terribly negative, but given the evidence I do believe it's likely to be true. The issue is that we don't know where or when this will happen, and who will be affected. But I believe my life as an American citizen will be very changed 5 years from now from what it is today, and I'm doing my best to prepare for whatever is going to happen. I really hope that I am wrong.