量子纠错是使量子计算机实用的关键。
Quantum error correction is the key to making quantum computers practical.
But only in their dreams can men be truly free. Twas always thus, and always thus will be.
自由的代价是永远保持警惕。
Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
Simplicity is prerequisite for reliability.