Brillinat man, but makes fundamental errors outside his expertise, e.g. in astrophysics. There may be other civilizations, but if they are 1 million light years away, it will take a million years (actually more, as the universe is expanding) for their light to reach us. There may well be alien civilizations in the planets we are looking at by now, but the light we are looking at is actually 1 million years old. 1 million years ago we were not emitting radio waves or artificial lights, we did not even have a civilization, so why would they. James Webb is looking at light 12 billions of years old - there were no life forms back then. One can use James Webb to look at nearby stars and planets, where the light is not too old, and maybe it can see something. But if a civilization is far away, relativity will prevent us from seeing their light right now, and we will not be able to communicate with far away civilizations, simply because the speed of light is finite.