Bill Maris, head of Google's investment arm, says humans will live to be 500-years-old in the future, while today's cancer treatments will soon seem "primitive" as scientists continue to hunt for cure. Humans will live to be 500-years-old, according to a top Google executive, who said the company was investing millions of dollars in life sciences to ensure this vision became a reality. Bill Maris, a venture capitalist and the managing partner of Google Ventures, the internet giant's investment fund, said it had hired scientists as partners in order to identify start-ups that could cure cancer and make chemotherapy "seem...