"I can't experience my brain because I'm inside of it. If you're imaging your brain, you can also find scary things. As one ages, your brain shrinks. And how much it shrinks, and where it shrinks, relates to conditions like Alzheimer's and dementia."

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I'm always very excited about trying to do something on next-generation biotechnology and life sciences because I think if we can cure cancer or dementia, we can really make the future a lot better and I think these things are eminently doable.

— Peter Thiel