157 Kardashev Scale, The big picture on space civilizations

Here is a visual representation of the Kardashev scale and the amount of energy for each step:  [https://en.wikipedia.org/wiki/Kardashev_scale#/media/File:Consommations_énergétiques_des_trois_types_de_l’échelle_de_Kardashev.svg] Why is there a scale? It’s hard to have an intelligent conversation about something if you don’t have a way to think critically about it. Classification schemes is one way of creating a frame of critical thinking.  You […]