Ben Rapoport is the co-founder and CSO of Precision Neuroscience. Ben's problem is this: Can you build a device that allows a paralyzed person to use a computer with only their thoughts – without damaging their brain?

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Jeff Cardenas is the co-founder and CEO of Apptronik. Jeff's problem is this: Can you make a safe, reliable humanoid robot – for less than $50,000?

In the short term, Apptronik’s robots will work in factories. But Jeff’s long-term goal – based on the experience of his own grandparents – is to build robots that can help care for the elderly.

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We need better, cheaper ways to store solar and wind energy when it’s dark out and the wind isn’t blowing.

One option: Compressing air in underground caverns when energy is abundant, then blowing it back out to create energy when you need it. It’s an old idea, but it has some fundamental problems.

Curtis VanWalleghem, the co-founder and CEO of Hydrostor, thinks his company has solved those problems with a new approach. If he’s right, his firm will help fix the biggest bottleneck slowing down the adoption of solar and wind power.

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