3-D printing
An AI visionary looks forward to the best of all possible worlds
Technology unquestionably improves lives, says Ray Kurzwei, and soon we’ll be living to 150. As for 3D-printed guns invisible to scanners – there’ll be a solution to those too
The great pretenders
Can the beauty of Palmyra be reproduced by data-driven robots? Stephen Bayley on copies, fakes and forgeries
