Task: Question Answering
Input (English): passage: Faster-than-light (also superluminal or FTL) communication and travel refer to the propagation of information or matter faster than the speed of light. The special theory of relativity implies that only particles with zero rest mass may travel at the speed of light. Tachyons, particles whose speed exceeds that of light, have been hypothesized but the existence of such particles would violate causality and the consensus of physicists is that such particles cannot exist.
 question: can anything be faster than the speed of light?
Output (English): No