So, the real question is how would humanity react to E.T. actually showing up with a big fat hello?😲.

How many humans would lose their mind?

How would it impact society, globally?

Something is afoot, one way or another but does it matter?

How about belief in our species and capacity to achieve even in the face of E.T.?

Well if I see a UFO I'm thinking :

a) Finally, friendly space aliens!
b) Project Blue Beam
c) One of ours
d) King Charles
e) demons

Humans think non-human life is some kindly advanced race but what does "First Contact," if you will, show in our human history?

Humanity as a species should operate on the assumption that our First and many times thereafter Contact will not be good.

In his Theory of Relativity Albert Einstein said nothing could travel faster than light. To the best of my knowledge no assertion of the Theory of Relativity that has been tested has been proven wrong.

If nothing can travel faster than light that places a strong barrier on space travel for us and for any intelligent species from another planet.

What surprises me is that we have not detected radio broadcasts from alien civilizations. Scientists began looking for those broadcasts in 1960 with radio telescopes, but they have not found any.

The Chinese built a radio telescope that specializes in looking for alien broadcasts. If they have found anything, they have not said anything about it. I am somewhat apprehensive about what the Chinese are doing. If they find a broadcasting station from an advanced civilization they may learn scientific facts that can be used in a military way.

What if...Stargate SG-1 television series presented to us as science fiction, was actually based on fact?