This isn't the first time that sticking to a design led to a technical hardware/physics problem. This happened originally when Steven was designing the iPhone 4 with his team and took out most of the antenna lines, leaving only a small antenna line at the top and not the noticeable ugly antenna lines you see on every single iPhone today. Steven's antenna design was incredibly simple and aesthetically pleasing - just one of several incredible advances of the iPhone 4 - but Steven's antenna design led to some radio frequency problems I definitely don't understand which caused the entire "you're holding it wrong" scandal.
That is just another example from 2011 or so of designers running the company but running into a technical issue with the laws of physics - there it was just radio frequencies instead of whatever it is here with this AirPower and the the heat or frequencies or something created from the as many as possibly 15 or 32 coils inside of it.
There are so so so many examples of where this design-first approach has definitely worked. One example is how the external aluminum case of the 2-pound MacBook from 2015 was designed first, and then once lithium ion batteries were created which had to be custom and have a custom internal chemistry so that they could be stacked on top of each other in a terraced structure. A second example is in Face ID which is very fast and simple conceptually but technically requires a custom chip running a custom neural network and for PrimeSense to miniaturize their Kinect hardware that they created for the Xbox into a the super small menu bar of the iPhone X. The chip team and the PrimeSense team started with a simple concept/design of a user looking at their iPhone, and then filled in all of the extremely technical and multi-disciplinary practicalities.
When you start doing something that nobody has done before, you absolutely do not know that it can work. You will fail in every way – Jonathan mentioned that when they were creating Face ID, all that they had for such a long time were failed engineering designs that simply put did not work.
Nobody knew that you could miniaturize the Kinect hardware, or that this chip could actually run their custom neural network quickly and with low power consumption to get Face ID. But you can. For MacBook batteries, if you mess the chemistry of these batteries up, the batteries will absolutely explode just like Samsung's did the following year. Nobody knew that you could stack the batteries of a MacBook on top of each other either. But you can. Nobody knew that you could remove most of the ugly antenna lines on an iPhone and just place just one antenna line at the top. Oh wait, but you can't. Nobody knew that you could charge 3 devices at the same time within whatever FCC regulations and still maintain low heat. Oh wait, but you can't (I guess, if that's the problem).
The point is that whenever you're doing something that nobody else in the world has done, you can't know it's going to work and you will fail. You will succeed but you will also fail, if you are truly doing creative work. Here, Apple failed. I guess because what they finished in the lab was possible according to the laws of physics but not safe (coils might overheat and catch fire or melt, might explode, might stop a person's pacemaker, and so on).
