MacBook Pro with Touch Bar review: a touch of the future

A little over a decade ago, a Russian design studio unveiled a concept keyboard that, as much as any gadget ever can, rocked the tech blogging world. It was called the Optimus, and it was the most interesting keyboard you'd ever seen: a standard QWERTY design, but with a screen on every key that could change in an instant, giving each app its own perfect layout.
The keyboard eventually shipped, and some other incarnations followed, but they never did make a dent in the real world — they w