Like now for instance. I was thinking about some of the great fuckers I worked with at Space Physics at the University of Michigan, the actual Big Bang Theory people. I was their media director and webmaster, but two of the professors I worked on shit with said they wished their grad students had my enthusiasm and will to learn.
The SMALLEST black hole we know of has a radius of only 12 km, or about the length of Manhattan, (WTC to Harlem and beyond). It is so heavy and dense it has the weight and density of between 5 and 10 suns on that Manhattan island.