Assuming the technology was there, and the rate of improvement upon said tech was stable and less drastic from where it is now, In an ideal world where PhoneBloks was achievable as shown and expectations could be met… What would the real improvements of UX be? People might feel more in control of their device. I certainly agree it could cut down on the rate of waste. But industrial designers spend a lot of time making sure all the working parts are hidden so the experience is seamless and transparent. Making a phone that everyone builds kind of ignores that ideology. I think the most beneficial part of the PhoneBloks concept is the call for it to help reduce tech waste. I think the most efficient answer is to make the phone more complex though. And I can also imagine my kids, instead of playing with legos, playing with phonebloks and as they grow up, just having boxes and containers full of them that eventually get thrown out like the Legos I had growing up.