Project Morpheus, Sony's own virtual reality movement, has always had tech inside of the PS4. The DualShock 4 light bar was specifically intended to operate with Project Morpheus. But that information couldn't be revealed until now.

Jed Ashforth, Senior Designer at Sony Computer Entertainment Europe, spoke with TechRadar about the technology that had secretly been included. "The tracking light... it was our department that said we need that on. It was for tracking for VR. And when all these things were coming out six months ago and everyone was going 'it's reflecting in my TV,' we were going 'oh no' because we couldn't tell anyone what it was for."

To the relief of several PS4 owners, the most recent update made it possible to dim the light bar... but it's nice to know what it has always been intended for.