Historian John Meacham writes quote, What injustices are we perpetuating even now that will one day face the harshest of verdicts by those who come after us? This applies to so many things. Like what is the modern equivalent of cigarettes, which were doctor recommended just a few generations ago? We didn't know that dinosaurs existed 200 years ago, which makes you wonder what else is out there that we are oblivious to today. So much of history is just gawking at how wrong and how blind people can be. And then you realize that today will be considered history in a few generations. It's so unpleasant, but it is also so fascinating.