And knowing what you could do with lasers, I worked it out: Could you actually detect gravitational waves this way? And I came to the conclusion that. Rainer Weiss laid the foundation for what would become the Laser Interferometer Gravitational-Wave Observatory (LIGO) in a closet-sized room at MIT. (From the archive) https://quantamagazine.org/rainer-weiss-remembering-the-little-room-in-the-plywood-palace-20170615/.