On the shared life of Tatiana and Krista Hogan:

The girls’ doctors believe it is entirely possible that the sensory input that one girl receives could somehow cross that bridge into the brain of the other. One girl drinks, another girl feels it.

Is this the world’s most bizarre scholarly meeting?

Phil Kennedy set out to build the ultimate brain-computer interface. In the process, he almost lost his mind.

“It’s just beyond our experience—we have nothing in our evolutionary history that prepares us or primes us, no intellectual architecture, to try and grasp the remoteness of those odds.”

The intricacies of a delicate operation.

A nationally respected neurologist feeds secrets to Wall Street.