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← People and their mental models

John Bai's mental models

4 claims John Bai made fit 4 mental models. Most often: Feedback loops, Less, but better, Make it real. Everything they said here.

Models they name

Their own words name the idea.

Make it real

Build a prototype; it settles arguments a description cannot.

Used by 25 others

At Cursor every idea is backed by a working prototype that can be shown in a crit and shared as a link for everyone to try.

  1. John Bai Designer at SpaceXAI in New York working on Grok Bot I think every idea is backed by a prototype, a working prototype that not only you can present to, you know, on the big screen during a crit, but you can share the link and everyone else can interact with it and decide for themselves whether it feels right to use. John Bai - The Grok Bot design journeyyoutube.com · 25 Aug 2026 · 37:02 into the videoAll korrents from this video
    I think every idea is backed by a prototype, a working prototype that not only you can present to, you know, on the big screen during a crit, but you can share the link and everyone else can interact with it and decide for themselves whether it feels right to use.

    Watch from 37:02 plays here

    ↗John Bai - The Grok Bot design journeyyoutube.com

    25 Aug 2026 · video · 48m · spoken · machine transcript

Models we see in what they say

Our reading: their claim applies the idea without naming it. The claim is theirs; filing it here is ours.

Feedback loops

Shorten the loop between doing and finding out; whatever a loop rewards is what you become.

Used by 60 others

Part of the game with prototyping quickly is that you learn lessons early and use them to inform the next step.

  1. John Bai Designer at SpaceXAI in New York working on Grok Bot Part of the the game with prototyping quickly is that you learn these lessons early and you use that to inform the next step. John Bai - The Grok Bot design journeyyoutube.com · 25 Aug 2026 · 13:47 into the videoAll korrents from this video
    Part of the the game with prototyping quickly is that you learn these lessons early and you use that to inform the next step.

    Watch from 13:47 plays here

    ↗John Bai - The Grok Bot design journeyyoutube.com

    25 Aug 2026 · video · 48m · spoken · machine transcript

Less, but better

Find the essence and cut the rest; simplicity is hard work, not the absence of effort.

Used by 59 others

A strong culture of unshipping helps remove complexity and focus on a product's strengths.

  1. John Bai Designer at SpaceXAI in New York working on Grok Bot within cursor, we have a strong culture of unshipping. And I I'm really glad we do because that helped us remove a lot of the complexity and focus on the strengths of the Grockbot app itself. John Bai - The Grok Bot design journeyyoutube.com · 25 Aug 2026 · 34:40 into the videoAll korrents from this video
    within cursor, we have a strong culture of unshipping. And I I'm really glad we do because that helped us remove a lot of the complexity and focus on the strengths of the Grockbot app itself.

    Watch from 34:40 plays here

    ↗John Bai - The Grok Bot design journeyyoutube.com

    25 Aug 2026 · video · 48m · spoken · machine transcript

Value moves to what stays scarce

When something becomes cheap and plentiful, the value moves to whatever is still rare next to it.

Used by 59 others

You can build anything now, but not everything is worth building; what matters is whether ideas take a shape somebody else would want to use.

  1. John Bai Designer at SpaceXAI in New York working on Grok Bot we're in a we're in a time where you can build anything, but not everything is worth building. It's much less about, you know, how many ideas you have, how clever your ideas are, but do they take the shape that somebody else would want to use John Bai - The Grok Bot design journeyyoutube.com · 25 Aug 2026 · 40:17 into the videoAll korrents from this video
    we're in a we're in a time where you can build anything, but not everything is worth building. It's much less about, you know, how many ideas you have, how clever your ideas are, but do they take the shape that somebody else would want to use

    Watch from 40:17 plays here

    ↗John Bai - The Grok Bot design journeyyoutube.com

    25 Aug 2026 · video · 48m · spoken · machine transcript