A man, thinking he had found a hornet nest in his attic, was struck with panic when he discovered what was really inside

In the misty hills of Brittany, France, a quiet revolution began not in a laboratory or a corporate boardroom, but in the attic of a modest countryside home. What started as a moment of fear — a man mistaking a strange buzzing in his rafters for a deadly hornet’s nest — soon unfolded into one of the most inspiring stories of innovation …