Future aliens?

Do you know what angers me? The fact that you can't catch up to light even if you go at a decent rate

Anyway... back to the aliens and brains... Why arent aliens coming in contact with humans? My theory is that the aliens do not want to come in contact with us is because they're from the future. They genetically shrunk in body size, lost all hair and muscle etc. and is left with a giant brain. Another way is genetic engineering to become aliens. If brain like aliens invade crap brain people, there would never be a future civilization of brained aliens, and then, the human record would say never to go back in time and invade earth filled with little brained humans when we are in the future and become aliens

Its a good idea for all of us to train our brains because it is mentally healthy and you can live forever... (im not kidding)