*This article was created using voice input with AI (Aqua Voice) for text conversion. Please note there may be some inconsistencies.
When I Stopped Trying to Remember Everything, AI Became My Partner — A Second Brain Strategy
Hello. How’s everyone doing?
I’m Hiro from Full Body Tracking Lab.
I have a sudden question for you. Do you remember that idea you had yesterday? Can you recite right now what you wrote down a week ago?
Most people would answer “no way.” Same for me. Human short-term memory disappears shockingly fast.
But recently, I found a way to turn that from a “weakness” into a “weapon.” Let me tell you about it today.
Forgetting Isn’t a Bad Thing
Humans have short-term and long-term memory. Short-term memory really does vanish quickly.
Until now, this was a problem. So people desperately took notes. Wrote in Notion. Wrote in Obsidian. But do you actually review those notes?
Honestly, I rarely did. Notes aren’t for memorizing — they’re triggers for remembering. So what if we could get better at “remembering”?
That’s where AI comes in.
It’s Okay to Forget. AI Remembers.
What I’ve been doing recently: I talk -> AI stores it -> I forget -> When needed, AI helps me recall.
The key point is “it’s okay to forget.” Before, organizing notes took enormous time. But when you speak to AI, notes organize themselves automatically. All you do is “output.” Let AI handle the organizing.
This is the Second Brain concept.
Speaking Is Overwhelmingly Faster
Speaking is 2-3x faster than typing. But more importantly, speaking produces more authentic thought. When typing, you unconsciously edit. When speaking, raw ideas flow freely — including insights you didn’t know you had.
What Digital Tools Are Bad At
Obsidian, Notion, knowledge management tools — they can store knowledge. But connecting knowledge to knowledge is something digital tools are remarkably bad at.
How do you connect them? By talking. While talking, you notice connections. You convey that to AI. AI structures the connections.
Humans place dots, notice connections, and AI structures them. This division of labor works best.
Practical Steps
Step 1: Talk
Ideas, thoughts, realizations — throw them to AI by voice. Don’t organize. Just speak as you think.
Step 2: Have AI Organize
AI summarizes what you said into structured formats.
Step 3: Recognize Connections
When you notice “this relates to that” while talking, say it. AI understands the connection.
Step 4: Save to External Memory
Save organized content as Obsidian MD files or other external storage.
Step 5: Retrieve When Needed
When you forget, ask AI. It pulls from saved memory.
Summary: Don’t Fear Forgetting
In the old era, “remembering” was what mattered. In the AI era, building a system for recall matters more.
You don’t have to hold everything in your own head. It’s okay to forget. Instead, entrust it to your “second brain” — AI.
I’m a full-body tracking researcher, but full tracking is also a technology of “entrusting your body’s movements to external sensors.” Memory works the same way. Entrust it to AI, and you can recall when needed.
Don’t fear forgetting. Keep talking, keep entrusting. That’s the new way of relating to knowledge in the AI era.
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