You might be disappointed that the HTC Vive has been pushed back to an April 2016 release, but the reason for the delay is exciting… even if it is vague.

Gutted about the delay of your VR adventures? Stick some technology on your ears instead, and read PCGamesN’s list of best headsets.

At the Vive Unbound developers forum in Beijing, CEO Cher Wang revealed that Valve and her team made “a very, very big technological breakthrough” with the headset.

This breakthrough was apparently so significant that they decided to scrap the original version and focus on building the consumer kit with this mysterious breakthrough applied.

“We shouldn’t make our users swap their systems later just so we could meet the December shipping date,” said Wang (via Engadget).

The mystery will apparently be unveiled early next month at the CES tech tradeshow.

What could it be? Eye-tracking? Mind-reading? Smell-o-vision? Give us your best guesses in the comments and earn the right to feel smug next month if you guess correctly.