Silicon Valley is coming to terms with the impacts of some of its inventions, which are not always in line with the techno-optimistic vision that the industry offered the world 25 years ago, when WIRED started reporting on it. Sure, social media has connected people around the world, but it has also led to isolating filter bubbles. The data companies collects about our lives can make things very convenient, but it can also be used against us. And the rise of autonomous cars and trucks, while awesome, also means that the fear that robots could take certain jobs is looking increasingly justified. At the WIRED25 Summit Monday afternoon, Kitty Hawk CEO Sebastian Thrun and Y Combinator president Sam Altman gave the audience a dose of old-school optimism about the future and technology's role in it.