I probably couldn’t say this as well as Neil McCarthy says it, so allow me to quote:
One hundred years from now, a new crop of historians will have spent their careers puzzling over the mindlessness of a governing class that ignored reality and assumed the worst could never happen. They will ask how it was that science — in this case, economic science — could have been so thoroughly discarded. They will lament the lives needlessly ruined, the assumptions mindlessly made, the history casually ignored. And some may even recur to an earlier time and a different world — the world of August 1912. Where a different hell was ultimately produced.