Is it an accident that scientists are starting to sound more and more like science fiction writers?

Or is it the result of the influence of sf writers?

If aliens did leave their mark on Earth by some wild chance, we could search for the possible “footprints” of alien technology or even analyze the DNA of terrestrial organisms for signs of intelligent messages or tinkering. Such a CSI-style forensics search could complement, rather than replace, the outward-looking search for extraterrestrial intelligence, said Paul Davies, a physicist and cosmologist at Arizona State University in Tempe.

From http://www.msnbc.msn.com/id/45077132/ns/technology_and_science-space/t/should-we-search-alien-footprints-right-here-earth/#.Tq27zPSIm0t

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