Even primitive humans left data trails in the form of footsteps, campfires, and arrowheads. But in the digital age, we are constantly generating data. Search engines and advertisers tap it. So does the National Security Agency. Convenience and security are the upside. Loss of privacy is the downside.
Astrophysicist Martin Rees, a man of 'no religious beliefs,' was awarded the Templeton Prize for helping humanity address 'fundamental questions of our nature and existence.'
So says renowned physicist Stephen Hawking: aliens should be avoided, lest we want to risk becoming an imperial outpost. Should we be going about the search for E.T. differently?