Arguably the most disturbing theory to explain our lack of contact from ET was put forth not by an astronomer but by psychologist Jack Baird. Working with NASA on SETI in 1982, he raised the possibility that the reason we haven’t heard from aliens is due to fundamental limits of the human mind.
Be Careful What You Say To E.T.: Clues To The Dangers Of The Search For Extraterrestrial Intelligence (SETI)
Earlier this year, A scientist studying Boyajian’s star and SETI astronomers teamed up to pitch NASA on using TESS data to look for megastructures like Dyson Spheres. NASA granted the proposal. For the first time in history, NASA is officially sponsoring a search for alien megastructures.