MEGASTRUCTURES! With Journalist & Science Fiction Author MATT WILLIAMS What’s the absolute BIGGEST thing we could ever build in the entire UNIVERSE? Read More elon musk, engineering, physics, psychologyPhilip ShaneJanuary 14, 2020colonization, engineering, habitation, hard sf, humans in space, industry, international, physics, science fiction, scifi, solar system, space elevators, space station, guests