N.C.: My suspicion is that those who seem oblivious to suffering, whether it is nearby or in remote corners, are for the most part unaware, perhaps blinded by doctrine and ideology. For them, the answer is to develop a critical attitude toward articles of faith, secular or religious; to encourage their capacity to question, to explore, to view the world from the standpoint of others. And direct exposure is never very far away, wherever we live — perhaps the homeless person huddling in the cold or asking for a few pennies for food, or all too many more.

G.Y.: I appreciate and second your point about exposure to the suffering of others not being far away. Returning to Trump, I take it that you view him as fundamentally unpredictable. I certainly do. Should we fear a nuclear exchange of any sort in our contemporary moment?

N.C.: I do, and I’m hardly the only person to have such fears. Perhaps the most prominent figure to express such concerns is William Perry, one of the leading contemporary nuclear strategists, with many years of experience at the highest level of war planning. He is reserved and cautious, not given to overstatement. He has come out of semiretirement to declare forcefully and repeatedly that he is terrified both at the extreme and mounting threats and by the failure to be concerned about them. In his words, “Today, the danger of some sort of a nuclear catastrophe is greater than it was during the Cold War, and most people are blissfully unaware of this danger.”

In 1947, Bulletin of the Atomic Scientists established its famous Doomsday Clock, estimating how far we are from midnight: termination. In 1947, the analysts set the clock at seven minutes to midnight. In 1953, they moved the hand to two minutes to midnight after the U.S. and U.S.S.R. exploded hydrogen bombs. Since then it has oscillated, never again reaching this danger point. In January, shortly after Trump’s inauguration, the hand was moved to two and a half minutes to midnight, the closest to terminal disaster since 1953. By this time analysts were considering not only the rising threat of nuclear war but also the firm dedication of the Republican organization to accelerate the race to environmental catastrophe.

Perry is right to be terrified. And so should we all be, not least because of the person with his finger on the button and his surreal associates.

G.Y.: Yet despite his unpredictability, Trump has a strong base. What makes for this kind of servile deference?

N.C.: I’m not sure that “servile deference” is the right phrase, for a number of reasons. For example, who is the base? Most are relatively affluent. Three-quarters had incomes above the median. About one-third had incomes of over $100,000 a year, and thus were in the top 15 percent of personal income, in the top 6 percent of those with only a high school education. They are overwhelmingly white, mostly older, hence from historically more privileged sectors.