This question is silly and doesn’t make much sense. The reason it doesn’t make any sense is because in order to ask this question you have to blindly
discount every U.F.O. sighting or close encounter that has ever occurred. This is just an excersize in subjective reasoning.

Think about it, when you say why haven’t Aliens visited us, this implies that they have visited us and U.F.O. sightings confirm this.

When you say this, you’re determining how an Alien race will visit us. If they’re not visiting us with U.F.O.’s and probes like 2 of the 3 U.F.O.’s I
have seen, then how will they visit us?

We send out satellites, probes and rovers and eventually they will be equipped with artificial intelligence. So we may send a probe equipped with A.I.
to Trappist-1. If we sent New Horizons which travels at 32,000 mph to Trappist it would take 817,000 years. The star is believed to be 500,000 years
old which makes this a young system. We could eventually send probes there to look for life or to jumpstart life and seed the planet.

So again, if some U.F.O.’s aren’t extraterrestrial then how would an Alien Race visit or monitor this planet? Why couldn’t they find us the same way
we have found Trappist-1e or Kepler 22b?

edit on 27-2-2017 by neoholographic because: (no reason given)