Siri didn't emerge from a single mind—it was the product of many brilliant innovators. But in this episode, Cal talks with one of the key founders behind the company that built the digital assistant Steve Jobs had to have. Norman Winarsky takes us back to the moments Siri first stunned the world in the testing phase in 2009 and 2010 and shares his thoughts on today's AI revolution—what excites him, what concerns him, and what leaves him in awe.