A look at Apple’s unusual approach to building its MR headset, which took seven years to develop and which will still be an experimental product at launch (Wall Street Journal)

Wall Street Journal:A look at Apple’s unusual approach to building its MR headset, which took seven years to develop and which will still be an experimental product at launch  —  Apple’s soon-to-be-revealed mixed-reality device will likely cost $3,000, requires a separate battery pack and is still experimental