Tim Berners-Lee, the idealistic architect of the world wide web, faces its dark side in his new memoir

Lee’s optimism clouds his ability to offer solutions for the political and social dystopia that the internet has spawned in ...
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SETI’s strangest clue: signals so perfect they didn’t look natural

Some of the most tantalizing hints in the search for extraterrestrial intelligence have not been messy or chaotic, but eerily ...