Extraordinary discoveries are being made in the galactic darkness. Dr. Jessica Bloom assembles the historical, theoretical and observational data that are causing a rethink of black holes. Why are they at the astrophysical crossroads ?  And Dr Karl estimates our civilization's Kardashev ranking - how advanced are we ? Part 1 of a double black hole podcast. https://drkarl.com/   https://en.wikipedia.org/wiki/Kardashev_scale