Q: AI is changing so fast — how do I keep up and stay relevant?

By learning the layer that doesn't change. Models update every few months; the fundamentals underneath them have been stable for years: API calls, context management, tool calling, retrieval, the agentic loop, evals, deployment. Engineers who learned those from first principles absorb each new release in an afternoon, because it's a new brain plugged into concepts they already own. Engineers who learned a specific tool's syntax start over every cycle.

That's the strategy in one line: build on principles, not on products.