Ever since I was a boy I’ve been coming across theories to the effect that humankind finds itself at the end of a cycle that starts with the development of rudimentary technology, then radio (speed of light) communications, followed by …
Ever since I was a boy I’ve been coming across theories to the effect that humankind finds itself at the end of a cycle that starts with the development of rudimentary technology, then radio (speed of light) communications, followed by …