Most of us harbor strong beliefs in conspiracy of one kind or another. It could be about something as big as the JFK assassination or the Twin Towers on 9/11, whether or not anyone ever landed on the moon, or if vaccinations aren’t a big hoax. “Everything Is Connected: Art and Conspiracy” is the first museum exhibition on this subject, exploring how artists have dealt with this perennially provocative topic from 1969 to 2016. Seventy works by 30 artists in a wide array of media are currently on view at the Met Breuer (former site of the Whitney Museum), through Jan. 6, 2019. The show addresses Kissinger, Reagan, JFK, Watergate, AIDS, education and other themes. We often rely on artists to have a sixth sense about the world, pointing us to what we don’t know yet but will turn out to be.