His point is that fundamental physics and information theory limit how good a wireless link can be. So wired links will always perform better and therefore high-end audio engineering will run cables forever.

Technically, you could create an isosynchronous wireless protocol. But 802.11 ain't it, and neither is Bluetooth. Both are very tolerant of lag and have little guarantee of latency.

"Buy a desktop" in a thread about deficiencies in Apple laptops is a joke, right?

It's not a deficiency. Laptops can't do everything. Apple can't build a computer that caters to every edge case. That's why I don't complain that I can't play the latest video games on my laptop, or run 50 VM boxes or something.

But I'm not complaining that it can't do something magical and new. I'm complaining that it can't do what the same product could do from the same vendor five years ago.

That's not my point. The new MacBooks may be disappointing, but they exist. The Mac Pro, iMac and Mac Mini didn't even get a refresh.