> Tesla is probably at greatest risk here, having recently ditched physical stalks that instead move the turn signal functions to haptic buttons on the steering wheel.
God the future is turning out so lame...
They may have left some blinking icon on on the screen, but you're watching the road and don't see it.
They may have left that confirmation 'click' sound on, but you can't hear it because you can't adjust the music volume :)
I think the easiest way to understand the difference is to ask 2 questions: "can I put my finger on that button and not immediately trigger it" and "can I can physically tell that I am triggering it (ideally some physical travel)?" If the answers are "yes", then it's probably the kind of button people look for when talking about wanting "real buttons".
However, I think that such buttons are far more expensive than a physically activated button, even if the latter is engineered to last a lifetime of heavy use.
This was the little (to no) feedback of a press I was mentioning. Simulating the absolute bare minimum of travel. With the pressure sensors and the piezoelectric actuators it becomes a super-expensive, overengineered button simulator that works almost as well as the real thing.
Even Apple dropped the fancier 3D touch completely, and the less fancy Force touch is just for trackpads. Everything else is the cheaper Haptic touch doing away with pressure sensors entirely. It was fine for my iPhone 8 home button and old watch.
But a car is different. A hazard light button has ~5mm of travel. Blinker or wiper stalks have centimeters of travel. Same for rotary knobs. They're also well spaced from each other with hard to confuse actuation methods. In noisy and vibration prone environments, with time sensitive requirements, you want to have very clear and distinct ways to act and receive feedback that actions were performed, especially if critical for safety.
Still, as blinker controls they don’t have tactile markings and a stalk would be much better.
You're correct. But I was addressing GP's wording (emphasis mine):
> those 'haptic' buttons are real buttons
I was making the point that it's not a "real button" if, as you also say, it just "almost like" a real button. Knowing the M3 buttons, that "almost" is doing a lot of heavy lifting. Press a classic hazard lights button, and a Tesla signal button and see if they really feel similar. No need to go to the vastly different stalk.
For any normal person a button involves not only the application of pressure but also the consistent feedback of travel. Things like Apple's taptic engine and similar techniques simulate already bad buttons with microscopic travel.