Imagine a 2.4-ton robotic arm wielding a six-foot-seven (2-m) circular sawblade with a 12-foot (3.7-m) reach, slung onto a truck-mounted hooklift system for easy transport. It's as terrifying as it is ...

When we tie our shoelaces or open a bottle of soda, we do it on autopilot, reflexively. Meanwhile, millions of people all ...