Ask HN: Quantum Computers - the Future?

As a high school senior starting college next semester, I'm doing a lot of looking forward for careers that will explode in numbers and usefulness. Quantum computing seems, to me, like it will dramatically change the world in the next 10-20 years, much like the PC revolution did. Am I wrong in this assumption? Would it be unwise to major in something as specific as computer engineering and quantum physics?