All I see is a few thousand complicated circuits at which when the computerized control system detects the tiniest of unexpected value it'll shut it down needlessly and is almost impossible to repair by anyone who doesn't have a straight tens university degree. Same happened to cars, 80% of the repairs performed on the cars my parents have owned over the years it was electrical or computer failures. Now for cars it's not the end of the world, if it happens in a lift like this though, congrats, you're now stuck in it until the technicians arrive who may need explicit qualifications to work on it.