But that's the thing. Audacious, open-ended endeavors tend to yield big, unexpected rewards. The engineering of supertalls is undoubtedly going to give rise to new materials, new seismic protections, and new aerodynamic shapes that will transform our lives down here on the ground. Maybe the financial world is doing us all a favor by throwing so much private money at these otherwise insane projects. In the same way, let's throw public money at understanding our own brains. We'd be crazy not to.