Think about it, in the last 500 years we went from horse and wagon to outer space, then the democrats got into power and now we can't even protect our borders, be safe from crime or get the goobermint out of gridlock from the people who are dead set on ruining our society.

I really don't think aliens who would be 500 years ahead of us would be able to overcome the laws of physics to do any better than us.
The most realistic scenario is that they have used up all their fossil fuel, gone to green energy and polluted their planet beyond repair from mining, production and disposal of green energy waste and by products and their planet is now a toxic wasteland and they are all fighting each other to survive.
