# Voice is how small businesses will talk to their customers

> Jack Dorsey on Dessa, Block's full-duplex speech model, and why I think it matters for Main Street.

- Kind: Link · X
- Published: 2026-10-24
- Source: [X, @jack](https://x.com/jack/status/2113697902916751661)
- Author: Savi Singh
- Page: https://savi.fyi/notes/block-dessa-voice

Quoted: "Talking with it feels like talking with a person…full of emotion, nuance, pauses, and a natural cadence."

[Jack Dorsey](https://x.com/jack/status/2113697902916751661) announced [Dessa](https://block.xyz/dessa), a full-duplex speech model from Block's AI research lab. It listens and talks at the same time, and Block says it runs locally on a MacBook Pro.

This is wild.

I think this is the future of how small businesses will talk to their customers, and work with their own tools. Block is building the entire stack for commerce on Main Street: AI kiosks, agentic payment rails, and voice models that run on edge devices.