The Fermi Paradox: Where Are All The Aliens?

	Human technology is not advanced enough for us to communicate with intelligent ET life	Intelligent ET life is too far away to contact us	Intelligent ET life has already contacted us but the government has covered it up	Intelligent ET life exists and knows we exist, but chooses not to contact earth.	Intelligent ET life has contacted or visited earth, but long before the development of humans	Intelligent ET life's technology is not advanced enough for us to communicate with	Intelligent ET life destroyed itself before developing sufficient technology to communicate
What is the best reason for the lack of evidence of intelligent ET life?	42	35	30	27	23	13	4

% of Americans that believe in extra-terrestrial life that said...