We can be sure that in the race to pick the next president, if it is between President Joe Biden and ex-president Donald Trump, one thing is certain. The nation will have an old man in the White House who will have to contend with an even more dangerous and changing world. One can say that both men are “experienced” in the position of having served as president. Nonetheless, the argument will be how “competent” each man is now that both of them are past the age that most Americans would prefer their president to be. Supporters on both sides of the political spectrum will say that th...