Gravitational Micro Lensing Constraints on Primordial Black Holes

There are lots of ideas about how we could look for primordial black holes in this mass range. Some people disagree, it's kind of complicated and frankly not, there's not a clear consensus on that yet. Right now, they're more of a fun theoretical idea than something most physicists have a lot of faith in. And if the experts can't agree, then I'm not going to figure out the right answer just for the sake of a pocket. Yeah!