Astronomers don’t see black holes directly. They see other celestial objects being affected by them. They infer the presence of a black hole by its gravitational pull. It is a deduction but a basically certain one because objects do not bend the course of their trajectory without a massive gravitational pull. As I wrote eighteen months ago, as the Russia story was erupting, you can infer the scope and depth of a scandal by its gravitational pull, often long before you know the particular details. President Trump’s actions make perfect sense if your assumptions are correct. Either by fear or avarice or some other species of control that exceeds the capacity of my imagination Russia exerts a control over President Trump. So the US is in grave danger.
Josh Marshall, “The Worst Case Scenario Has Been Obvious for a While”: