Joshua Park

Co-founder & Head of Growth @mem_base
Second brain landscape:

[Joshua Park @JoshuaIPark]

It’s hard to categorize or evaluate second-brain systems because there’s no single right answer.

But I found one useful lens every second brain should be evaluated through: the lifecycle of your data.

Collect -> Organize -> Evolve -> Use -> Govern

So I made a curated comparison of the existing second brain, AI memory, and knowledge systems, from @claudeai’s memory to @garrytan’s GBrain.

It focuses on the full lifecycle:
- how scattered context gets collected
- how it turns into durable knowledge
- how it stays fresh over time
- how people and AI tools use it in real work
- how users can inspect, correct, delete, export, and trust it

If you want AI to understand your personal context, team knowledge, and working history, this might help.

PRs welcome, especially from heavy users who’ve actually tried building and maintaining a real second brain.

https://t.co/uUbLM10Ep1

[Joshua Park @JoshuaIPark]

@AlecStapp Why there is two South Korea??

[Joshua Park @JoshuaIPark]

@irabukht This is the first person I saw who was banned in Claude

[Joshua Park @JoshuaIPark]

@marclou You need to try 닭갈비

[Joshua Park @JoshuaIPark]

@_jhham Thanks!!

[Joshua Park @JoshuaIPark]

I crossed 5K followers today!

There are always ups and downs, but what matters is that they pile up if you never give up

Cheers

[Joshua Park @JoshuaIPark]

@jeffreykim0711 lol that will work for sure

[Joshua Park @JoshuaIPark]

Perfect feature for self-promotion

[Nikita Bier @nikitabier]

Commentary is one of the most important pillars of X. And sometimes the best way to share your thoughts is with video.

Today we're launching a whole new way to make them:
React with Video

Tap the repost button and start recording with green screen, split screen, or picture-in-picture.

Now available on iOS

[Joshua Park @JoshuaIPark]

@JqOnly Making a standard one is not one of our key tasks, but the new one should be made. We're making our own benchmark for internal evaluation.

[Joshua Park @JoshuaIPark]

Thanks for the interest!!

Lots of people requested a comparison on efficiency, so I'm working on it.

Stay tuned :)

[Joshua Park @JoshuaIPark]

It’s hard to categorize or evaluate second-brain systems because there’s no single right answer.

But I found one useful lens every second brain should be evaluated through: the lifecycle of your data.

Collect -> Organize -> Evolve -> Use -> Govern

So I made a curated comparison of the existing second brain, AI memory, and knowledge systems, from @claudeai’s memory to @garrytan’s GBrain.

It focuses on the full lifecycle:
- how scattered context gets collected
- how it turns into durable knowledge
- how it stays fresh over time
- how people and AI tools use it in real work
- how users can inspect, correct, delete, export, and trust it

If you want AI to understand your personal context, team knowledge, and working history, this might help.

PRs welcome, especially from heavy users who’ve actually tried building and maintaining a real second brain.

https://t.co/uUbLM10Ep1

[Joshua Park @JoshuaIPark]

@WillowVoiceAI Scribe!

[Joshua Park @JoshuaIPark]

@davidim 🚀🚀

[Joshua Park @JoshuaIPark]

Thanks for the interest!!

Lots of people requested a comparison on efficiency, so I'm working on it.

Stay tuned :)

[Joshua Park @JoshuaIPark]

@jphorism Awesome! How does it ingest and link related context?

[Joshua Park @JoshuaIPark]

It’s hard to categorize or evaluate second-brain systems because there’s no single right answer.

But I found one useful lens every second brain should be evaluated through: the lifecycle of your data.

Collect -> Organize -> Evolve -> Use -> Govern

So I made a curated comparison of the existing second brain, AI memory, and knowledge systems, from @claudeai’s memory to @garrytan’s GBrain.

It focuses on the full lifecycle:
- how scattered context gets collected
- how it turns into durable knowledge
- how it stays fresh over time
- how people and AI tools use it in real work
- how users can inspect, correct, delete, export, and trust it

If you want AI to understand your personal context, team knowledge, and working history, this might help.

PRs welcome, especially from heavy users who’ve actually tried building and maintaining a real second brain.

https://t.co/uUbLM10Ep1

[Joshua Park @JoshuaIPark]

@jphorism It depends on how many documents you are importing at once, but it requires 10~15 minutes for 1K memories.

It summarizes, indexes, and links during the step.

[Joshua Park @JoshuaIPark]

@FarzaTV Goat

[Joshua Park @JoshuaIPark]

@jphorism Are you meaning ingest time?

[Joshua Park @JoshuaIPark]

@Sebalg_tech Thanks!!

[Joshua Park @JoshuaIPark]

@artnxw I'm using @mem_base. You don't need any setup for it.

[Joshua Park @JoshuaIPark]

@Tanker_sailing Exactly

[Joshua Park @JoshuaIPark]

I would invest $10M in him if I were a multi-exit founder.

Every step he shares seems genius.

[Farza 🇵🇰🇺🇸 @FarzaTV]

Watch me control my computer with just my voice. This is the future of operating systems.

No hands.

GPT-Realtime 2.0 is very, very underrated.

Demo:

[Joshua Park @JoshuaIPark]

@0xWalker00 @dablclub Seems interesting, need to check. Thanks!

[Joshua Park @JoshuaIPark]

@abhayytwt Thanks!! 🙌