A theoretical computer built in a mixed-up mathematical universe might not sound like the most practical invention. But the discovery shows that computation can turn up in the most unlikely places, ...

Forbes contributors publish independent expert analyses and insights. Gil Press writes about technology, entrepreneurs and innovation. This week’s milestones in the history of technology include ...

Data manipulation is at the heart of computation, and a system is said to be Turing-complete if it can be configured to manipulate data in a way that makes implementing arbitrary computation possible.

(Follow the appropriate link above for Elga or Klein's office hours and contact information.) The final exam will be a take-home exam distributed on Tuesday, May 13, and due at noon on Monday, May 19.