I don't think anyone could understand aliens' technology if they were
more than 100 or 200 years 'ahead' of us. Could a guy living in 1805
understand the sientific theory and technology of today? What if some aliens
are a billion years ahead of us? Most likely all our scientific concepts
would be obsolete; so might the very ideas of science and theory. The aliens
would probably be completely incomprehensible to us. Maybe some are.