The worst political blunder of all time, according to scientist Freeman Dyson, was the decision of the emperor of China in 1433 to cut off his country from the outside world.
In the wake of that decision, China lost its position in the forefront of human achievements and fell behind, over the centuries, to become a Third World country.
Before the end of this month, the United States of America may break that record for the worst political blunder of all time.
Professor Dyson attributed the Chinese emperor’s blunder to “powerful people pursuing partisan squabbles and neglecting the long-range interests of the empire.” That can be our path to disaster as well.