That’s not a lightning port: it has 12 pins instead of 8, which seems like overkill for simply conducting power. And, to be clear, that’s 12 pins per side, which is the same as a USB-C connector. Two of the pins in USB-C are reserved for a communications channel so two devices can negotiate the orientation of each end of a cable, making the other 22 pins all usable, and enabling protocols like DisplayPort or Thunderbolt. The latter has more than sufficient bandwidth to move compute to the end of that cable — could there be a battery alternative that is nothing more than a keyboard with a Mac built-in, enabling a truly portable computing experience that rivals my desktop setup?

This is hugely speculative, to be sure, but I suspect it is our best hope for Mac-like capabilities in a Vision Pro device: I just don’t think visionOS will ever be up to the job, no matter how much it evolves, because there are certain areas where Apple itself will not.