AI will eventually drive healthcare, but not anytime soon

TechCrunch recently published a guest post from Vinod Khosla with the headline "Do We Need Doctors or Algorithms?". Khosla is an investor and engineer, but he is a little outside his depth on some of his conclusions about health IT.
Let me concede and endorse his main point that doctors will become bionic clinicians by teaming with smart algorithms. He is also right that eventually the best doctors will be artificial intelligence (AI) systems — software minds rather than human minds.
That said, I disagree with Khosla on almost all of the details. Khosla has accidentally embraced a perspective that too many engineers and software guys bring to health IT.
Bear with me — I am the guy trying to write the "House M.D." AI algorithms that Khosla wants. It’s harder than he thinks because of two main problems that he’s not considering: The search space problem and the good data problem.