Dubbed "asynchronous spacewarp" it sounds like something which should be just a jump to the left and a step to the right. But it means you no longer need an expensive AMD rig to run your VR at 90 frames per second.

Aysnchronous spacewarp uses frame interpolation techniques to deliver similarly smooth gameplay when you're running at just 45 frames per second.

Oculus previously required an Nvidia GTX 970 or AMD Radeon 290 GPU at the minimum, now you can run any NVIDIA 900 or 1000 series GPU (including the GTX 960), or any AMD RX 400 series card.

Of course it is not as cool as having the real thing. Oculus says it is not a complete replacement for a decent rig; it's positioning it as more of a stopgap for gamers who have yet to upgrade. Since this is most of the known world, it is not surprising that this could be popular.