"To clarify: I suggested that the way we use computers had changed so much, as had our knowledge of human cognition, that Turing himself might ask a different question now. My new question is rooted in our now knowing that collaboration is essential to intelligent behavior and seems to play a fundamental role in the ways infants learn. Can we design systems that behave so well that they pass for human? One big challenge, which my team is addressing in our research, is getting delegation to work well. Delegation of particular responsibilities to different team members is a hallmark of teamwork. To make teamwork work (or as we might say in computer science, to make it tractable), team members have to share information but not overwhelm each other with too much information. An enormous challenge for systems is to be able to determine what information to share with whom when."