The Theory (Verticals)

Despite discovering hundreds of planets that once contained intelligent life, not a single planet has been found where life still remains. Linda is an Astroarchaeologist and her job is to find these dead civilizations and learn from them, so humans avoid the same fate. Jemm-r is a time traveller, part of a group whose mission is to reduce human suffering. Jemm-r’s team's mission is to travel in time and do minimal alterations to reduce human suffering throughout history. It is a truly noble profession. Or is it?