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# Signal Layer: What to Build When Anything Can Be Built


- **Event:** World Congress 2026 North America

## Description

AI has made implementation faster, cheaper, and more widely available. That changes the real bottleneck in software.

Every team can generate code and spin up agents. The advantage moves to a different layer: knowing what is worth building, who it is for, how people will discover it, and how the product should behave once they do.

This keynote introduces the system of public signal, user intent, agent experience, distribution loops, and product judgment that helps builders decide what deserves to exist before they commit time, infrastructure, and trust to building it.

We will look at how AI changes the software lifecycle from “can we build it?” to “should this exist? When anything can be built, the most valuable builders are the ones who can read signal early and shape the right experience.

## Speaker

### [Lena Hall](https://www.wearedevelopers.com/@lena-hall)

Senior Director, Developers & AI 


## Related talks at this congress

- [Building AI Products vs. Building With AI](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1841-building-ai-products) — Aparna Dhinakaran, Rukmini Reddy, Tamar Bercovici
- [Our Brains in the AI Era](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1872-our-brains-in-the-ai) — Cassidy Williams
- [Physical AI: 5 Things You Can Build That Aren't Another Chatbot](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1815-physical-ai-5-things) — Vini Senger
- [Why Buy Software When AI Can Build It?](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1897-why-buy-software) — Lee Edwards, Mang-Git Ng, Richard Robinson, Yoel Sommer

## Watch remotely

Can’t make it to San José? Watch this session live with Pro. You also get:

- All full videos, bookmarks, and playlists
- World Congress livestreams

[See pricing](https://www.wearedevelopers.com/pricing)

## Links

- [Get tickets](https://www.wearedevelopers.com/world-congress-north-america/tickets)