When I was younger I got very interested in the Kennedy assassination and I read widely about it. At first I was inclined to credit some of the conspiracy theories — there is a lot of weird stuff in the story — particularly about how easily Oswald got into and then out of the Soviet Union, and also Ruby’s involvement, which just doesn’t make sense. (I was also influenced by my aunt, who thought it was a bungled CIA hit — she said “You know, the people they get to be assassins are not very reliable.” She spoke from a position of some knowledge. Just general knowledge, I should say, she never claimed to have specific knowledge about Oswald.) But the more I read, the less credible the conspiracy theories became. With some reluctance, I have reached the conclusion (for now) that the Warren Commission was essentially correct. And all the improbabilities in the story are just the universe being improbable. So that’s what I think. For now. Always open to new evidence or a better argument.