Sebastiaan de With, writing on Medium:

Without a truly top-tier workstation, Apple will miss out on a huge segment of digital creatives that can craft the future of human-machine interaction — something way beyond tapping a piece of glass. It would lack a Mac workstation with the raw computing power to prototype VR and AR interactions, build game worlds, simulate complex models and render the effects of tomorrow’s great feature films all the while offering those same creatives a platform to create for its own mobile devices.

The build up to the above quote is absolutely fantastic — running through a brief history of how professional Mac users helped Apple get to where they are today.