It’s a great reminder how difficult it is to comb vast distances of time and space. Even the best technology can’t send messages at a tiny dot of space in an out of the way tiny star. It takes vast accuracy and power supply, as well as incredible calculations, to send a tightly focused beam of energy that contained a signal with a message to reach us. Our earth is plunging through space around a sun spiraling itself in multiple directions at once at incredible speeds. The universe is not static. So they would have to know where we would be in the future with all though problems of galactic and planetary movements just to send a “Hello earthlings” type message.
Traveling is altogether impossible. Hollywood makes it all exciting, but it’s not physics. Then of course when they aliens get here they either kill us all for some obscure reason, or hide behind clouds and only pop up over the USA at nighttime. Ludicrous. I like sci-fi but not prone to delusions. The power needed is just to great to cross space. And the aliens would not be genderless great large eyed small children incapable of speaking English or any other earth language. We humans, not nearly as advance, already have in reality Star Trak like translator pins in via the new “Humane” pin on computer that hit the markets. They would be reasonable people, these aliens, and having spent trillions in their currency to build such a ship, the first they do would be talk to us, maybe try a donut before blowing up our small planet with all the resources other planets and asteroids already have much closer to their home planet, or in their asteroid belts.