Such a fun idea! Just to add to the lore, we can already detect galaxies without dark-matter. Which would be galaxies already scrubbed of intelligent life by t

Such a fun idea! Just to add to the lore, we can already detect galaxies without dark-matter. Which would be galaxies already scrubbed of intelligent life by the EAILD http://www.astronomy.com/news/2019/03/ghostly-galaxy-without-dark-matter-confirmed http://www.astronomy.com/news/2019/03/ghostly-galaxy-without...