Great post and to add some of my thoughts...
TL;DR - No auto company is going to survive that cannot figure out how to do software. This is truly the limiting factor for the future of the auto industry.
Elon is innovating on manufacturing to ensure he has the lead on BOM cost, throughput and vehicle build quality as he has solved software in that he is a true innovator and holds the total vertical software integration lead (from the chip FW all the way up to the final app's on the MCU - center display). Encompassing all code installed in the vehicle. Offers the most flexibility/agility, speed and quality control. Super highly functioning innovation machine.
Eventually this will culminate in solving FSD, but in the meantime, FSD will continue to get more and more valuable and cause the profit margins to incrementally go up until it blows-off-the-top with the full release.
All other auto manufacturers will be left with the crumbs. Low margin, less features, nothing to market of value, steadily declining sales as Tesla ramps up to offer shorter wait times.
I await the Sandy teardown of the Rivian and Lucid. The Mach E was very telling and Ford's days are numbered if that is where they are at with software and innovation (if that wheel on the screen wasn't a dead giveaway). The GM Bolt is dead in the water and the Hummer is a complete joke (no innovation, just a super large battery, with super low efficiency, which will be blown out of the water by CT). I also think the Ford Lightning is a joke (the vehicle on stage had an antenna). #TimeWillTell
Also, I know a bit about Apple. One of my best networking dev's at XBOX went to work in their chip team developing low level designs and efficiencies for networking speed and other bottleneck improvements at the lowest memory, channel and clock cycle levels. While I feel that Apple has done well as these levels, it is the small sandbox they play in compared to Tesla that is very telling. Their efficiencies will translate to vehicles, but their leader, Tim Cook, is just not an innovator, he's great at supply chain though. Apple will need to compete in vehicles by 2024 to remain the largest company on the planet.
I know a bit about Amazon/AWS as I competed with while working on Google Cloud Compute. Amazon is the leader and the lead continues to improve, but they play in a very different sandbox than Tesla. Amazon is similar to both Apple and Tesla as they have made their own chips, boards, trays, racks, data centers...etc the whole stack and innovate on it faster than any other company at every discipline. Compute, networking, storage are all done with their homegrown products and software. They invest more, they innovate faster and they are not slowing down. This is how Tesla operates and why the gap continues to grow each quarter.