:I think most researchers in quantum computing would consider your prediction of 5-10 years to be rather optimistic. Very basic quantum computers do exist, but they are not powerful enough to do anything practical. Whether or not the technology can scale to the point where it can actually do something useful is a big open question (the bigger a quantum system becomes, the more fragile it becomes also). Also, quantum computing can give exponential speedups for certain problems (e.g. factorising large numbers), but it is unknown whether they can give anywhere near as big speedups (or are even at all suitable for) general intelligence. -- SJK Thank you for the clarifications; my knowledge of quantum computing is rather hazy. |