Hyperwave Communication

The sci-fi fix for the universe's most annoying problem: lightspeed lag. Hyperwave communication is the hypothetical system that lets you send messages (or yourself) faster than light by not traveling through space, but by cheating through a higher dimension, subspace domain, or quantum-entangled network that bypasses normal spacetime. It's the only way to have a real-time conversation across light-years without waiting centuries for a reply. Protocols always involve "tachyon pulses," "subspace carrier waves," or "quantum entangled ansibles." It renders every form of radio and laser comms as obsolete as smoke signals.