What does it mean "faster than universe"?
Perhaps under this scenario, one would think the Universe as a computer or a numerical simulation, so a quantum computer with sufficient qubits can process certain types of problems faster than the Universe can within a certain interval of time or the entire age of the Universe depending on how you look at it.
EDIT: I found this website that discusses Rose's Law. The answer about "faster than the Universe" question is in the sentence I underlined in bold below.
So, how do we read the graph above? Like Moore’s Law, a straight line describes an exponential. But unlike Moore’s Law, the computational power of the quantum computer should grow exponentially with the number of entangled qubits as well. It’s like Moore’s Law compounded. (D-Wave just put together an animated visual of each processor generation in this video, bringing us to the present day.)
And now, it gets mind bending. If we suspend disbelief for a moment, and use D-Wave’s early data on processing power scaling (more on that below), then the very near future should be the watershed moment, where quantum computers surpass conventional computers and never look back. Moore’s Law cannot catch up. A year later, it outperforms all computers on Earth combined. Double qubits again the following year, and it outperforms the universe. What the???? you may ask... Meaning, it could solve certain problems that could not be solved by any non-quantum computer, even if the entire mass and energy of the universe was at its disposal and molded into the best possible computer.
Edited by Raklian, 23 July 2013 - 05:46 PM.