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The Hard Thing

AI, commerce, products. When the playbook runs out, make the call.

A personal publication on applied AI beyond the demo, agentic commerce, and product judgment. The perspective is grounded in experience across engineering, product development, startups, and enterprise technology.

Written byWojciech Gruszczyk

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Twilight of the Ivory Tower

· 8 min read
Wojciech Gruszczyk
Product and technology leader

What happens when AI can enter specialist domains in minutes and challenge the people who spent years mastering them?

An open ivory tower with stairs leading down to a table of tools and process diagrams

Original illustration for The Hard Thing.

There is always a name that comes up when a difficult question has travelled around the room without an answer. The architect who understands the old platform. The SAP expert who remembers why the strange process exists. The infrastructure specialist who knows what nobody dares to touch.

Everybody waits for the verdict. It is usually right and rarely challenged.

Stephen King's The Dark Tower has its Crimson King. The corporate version is less dramatic. Its ruler has no supernatural powers, only years of experience, documentation nobody else understands, and a calendar full of meetings.

For years, it was hard to tell how much of that authority came from being right and how much from being impossible to verify. Now something else has learned to climb.

Do tech-first organisations still need Product in the AI era?

· 12 min read
Wojciech Gruszczyk
Product and technology leader

If AI makes delivery cheap and roles keep overlapping, does Product decide what matters, or has it become the bottleneck everyone routes around?

Still-life gravity well with small objects pulled across warped graph paper

Original illustration for The Hard Thing.

Tech-first companies optimise for what is possible. Give talented engineers room and ideas appear. Shipping them feels like progress, but a stream of features is not a strategy. Somebody still has to decide what deserves company time.

Nobody has an edge in AI - except big tech

· 10 min read
Wojciech Gruszczyk
Product and technology leader

Most AI agents use the same models and patterns, making them easy to copy. The defensible advantage lies in proprietary data and the knowledge of how your business actually works.

K5 Future Retail Conference Berlin 2026 | Image based on K5 Mediathek recording material.

At K5, I kept seeing the same promise in different packaging: an AI agent that searches, advises, decides, or buys. Many of the demos were impressive. Yet once I looked under the hood, one uncomfortable question kept coming back: if the intelligence is rented through an API and the solution can be copied, where is the competitive advantage? In my opinion, it is not in the agent. It is in proprietary data and the knowledge of how your business actually works.