If they really do exist, and they are so advanced, why they have to use spaceships or planes, like primitive humans. At least something advanced can use energy or be energy, travel by thought etc.
An advanced predator is not a blue humanoid in space suit, but more probably some kind of virus installed in our brains.
An advanced predator is not a blue humanoid in space suit, but more probably some kind of virus installed in our brains.