I would say that Pace Layers, a concept introduced by Stewart Brand, offers a valuable framework to understand the lifecycle of interaction design work. The idea behind Pace Layers is that different elements of a system change at different rates, from the slow-moving foundational layers to the fast-moving surface layers.

The slow layers as the foundational stuff, like usability principles or interaction models, which don’t need constant updates. I feel like these give stability to the designs we create.

I notice that the fast layers, like visual trends or tech-driven features, are where changes happen a lot more often. I’ve experienced how staying on top of these helps keep designs fresh and relevant. But at the same time, I’ve learned that you don’t need to reinvent the wheel with the slower layers—they’re more about consistency and reliability.

I find it helpful to think about Pace Layers when I’m working on a project. I can focus on updating the fast-moving parts, like the UI or specific interactions, without worrying about the deeper layers every time. I also like how this approach keeps designs balanced—staying innovative without losing sight of the core principles.