My Brain Has Two Layers Now. One Is Notion. One Is Claude.

I used to keep everything in my head.

Projects, tasks, decisions, context, half-formed ideas at 11pm — all of it floating around, competing for space. It worked until it didn’t.

Now I run on two layers.

Layer 1 is Notion. Everything that exists lives there. My companies, my projects, my frameworks, active decisions, SOPs, notes from every session. Notion doesn’t think. It just holds. It’s my external hard drive.

Layer 2 is Claude. When I need to think through something — a decision, a draft, a strategy, a problem I can’t see clearly — I bring it to Claude. Not to get answers. To think out loud with something that pushes back intelligently.

The combination is the thing.

Notion without Claude is a filing cabinet. Claude without Notion is amnesia — great conversation, zero continuity. Together, they function like a second brain that actually works.

Here’s what this looks like in practice: I paste context from Notion into Claude. Claude helps me think. I take the output back into Notion. The next session starts where the last one ended. No lost threads. No re-explaining.

I’m not the only one who struggles to hold everything in their head while building something. If you’re running a company — or trying to — this combo is worth trying.

Notion is the memory. Claude is the thinking. I’m just the one making the decisions.

— Warren