My thought is that we truly cannot comprehend the full expanse of what is. Infinite worlds within worlds, what do you consider alien? I believe there is much much more than we know. What's going to happen when we communicate they may not exactly speak our general language, I think, AI's should be trained in advanced algorithmic procedures to decipher different languages utilizing next gen quantum systems, but humans aren't even close to be connected enough yet, they are barely scratching the surface. The proper tech, and we can find the answers sooner than later. :) We have infinite potential as a species, but systems need to be implemented correctly, and we can see worlds, we never thought existed, however there is a trick one can do to accomplish a new form of life in a humane, and ethical manner. A brand new world is coming, and it's much brighter than our past. :)