Thanks a lot Tony, I’m glad you liked my article :)
And I am a grid & keylines fan too: the way they make use of our brains inner mechanisms to understand the reality is impressive and super effective.
I have a draft for a story about Material Design & Gestalt and I hope to be able to finish it asap — but I actually would like to publish an article about the Material metaphor first, to better explain the basic idea on which this design system is build upon, a concept that’s often skipped in favor of the visual part. And once you skip it, you just have a series of rules, do and don’ts — not so meaningful or useful.
Hope you’ll like them too :)