Hello, In my university there is a bit of a fuss about Quantum Information (QI). A few professors work in this field and there have been some conferences where they try to explain to the rest what is QI and so on. I think it is safe to say I know a bit of quantum mechanics, not at a professional level though, but I cant understand why having bits in a superposition of states makes computing more efficient and fast. Theoreticaly, you can drastically cut down in search times, and it is said that they could actually make encrypted messages unsafe. I think most encryption is based on very large prime numbers which would be factorized with this quantum computer (!?). I know all this is old news but can anyone explain the crucial point that accounts for this boost in computing power?