why the sudden interest in VR and AR after years of hype that failed to live up to expectations?

Heather Bellini, of Goldman Sachs Research, noted in a report last year that faster microprocessors and more powerful graphics cards have allowed more images per second to be delivered since the industry’s potential was hyped a decade ago.

There have also been advancements in AR gear, like glasses that allow vision of the real world but also have data or graphical images projected onto part of the glass.

As such, Goldman Sachs is projecting VR and AR to become an $80 billion market by 2025 – roughly equivalent to the size of the current PC market.

he big problems with VR is “motion to photon latency,” which is the time it takes to turn your head and the screen to refresh at the same rate.