Wise words from Ethan Marcotte, who notes his discomfort with “adoption” as the sole or even primary metric for design systems. I’ve made the same choice in the past—adoption being the one thing that was readily measurable. But just because something isn’t measurable, doesn’t mean it isn’t valuable. Good design systems have the ability to impact the quality of communication and alignment among designers, engineers, product managers, and their peers. Maybe you can measure that—maybe you can’t—but either way, it’s worth attending to.