We're nothing if not cynics about "new hot fields." Why do we trust former Paypal CEO Peter Thiel when he invests in biotech out of a hope to indefinitely extend the human lifespan? Because his recipient, Methuselah Foundation head Aubrey de Grey, is hairy.
Think about it. These people are followers of Einstein, Benjamin Franklin, and Sir Isaac Newton, they're part of a healthy interdisciplinary network, and they know how to think long-term.