A 32-year-old with ties to Elon Musk wants to upend America with these 4 utopian ideas

Sam Altman often finds himself imagining a brighter future.

As the president of Y Combinator, the tech world's most prestigious startup accelerator, Altman makes a living discovering world-changing ideas and helping them grow into giants.

YC has given life to companies like Dropbox, Airbnb, Zenefits, and Reddit. But Altman also dabbles in a host of side projects that center on making society more equal and giving artificial intelligence the means to flourish.

Here are a handful of projects Altman believes could someday change the world for the better.