But if they were that smart
then wouldn't they consider "dumbing down" the signal for the sake of making contact with us savages? A kind of cosmic KISS philosophy to see how many technological civs are out there. If they're that far ahead of us, then building a 100 Mw transmitter would be child's play for them.
Lee, (Why use a cellphone to say hello to the person sitting next to you when you can simply say "Hi.")