[freerobby]

> Apple and Tesla can't support their designs indefinitely and remain profitable.

I don't see any indication of this. The support windows for all Apple and Tesla products are in line with consumer expectations. The two-year shelf life for iOS devices is driven more by market demand and the way that phone contracts (used to) work than anything else. You don't see that problem with Macbook Pros or iMacs, where consumers expect a longer lifespan.

The expectations for a car are even longer, which is why Tesla still supports its earliest vehicles, and says it will continue to do so moving forward. I don't see any reason to disbelieve this, nor evidence that the company can't sustain it.