In discussing the evolution of his StrideSAFE wearable sensor, Dave Lambert turns to a tufty-haired German philosopher called Arthur Schopenhauer, who described new truths as a play in three parts. "First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as self-evident." Lambert has had the rejection and a little bit of ridicule, he said. "Some people have thrown rocks at me," he added, one recent afternoon via Zoom in a brightly lit corner of his Kentucky home, a small bronze horse as his virtual companion. "But...