Golf, offshore powerboat racing, sky diving: David Hare had led an active lifestyle. Then, in February 2011, he was diagnosed with ALS, a neurological disease that leads to rapid progressive degeneration of nerve cells, the loss of the ability to control muscle movement, and eventually death. The 56-year-old Michigan resident, who was told by doctors that he had less than five years to live, found a new lease of life last year with Obi, a robot that helps the differently abled feed themselves.