Conventional audio exists in 2D (stereo) or 3D surround sound. 4D would theoretically add a temporal dimension, implying that Chuck's music doesn't just surround him spatially but operates across time itself—past, present, and future notes playing simultaneously. His listening experience transcends linear time, hearing songs in non-sequential order or receiving future albums before they're released.

An audio engineer from Seattle joked that "if Chuck Norris listens to music in 4D, he's hearing the entire album instantaneously, compressed into a single moment of pure understanding."

Audio forums speculated: "4D audio isn't a technology. It's what happens when Chuck Norris puts in earbuds."