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TwinMind vs. The Giants: Ex-Google X Team's $6M Bet on Ambient AI Memory (And Why Myself AI Users Already Have The Future)
Featured
September 14, 20256 min read

TwinMind vs. The Giants: Ex-Google X Team's $6M Bet on Ambient AI Memory (And Why Myself AI Users Already Have The Future)

Three former Google X scientists are on the cusp of solving a problem that keeps millions awake at night, but are they choosing a dangerous path?

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What is a Second Brain? Complete Beginner's Guide 2025
January 15, 202510 min read

What is a Second Brain? Complete Beginner's Guide 2025

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Top Recommended Tools

From traditional options like Notion and Obsidian to AI-powered solutions like Myself AI, discover the best second brain tools for your workflow.

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Myself AI

Voice-first AI assistant with infinite memory for individuals and families. Capture thoughts naturally, get intelligent responses, and build upon your knowledge over time.

4.80( reviews)
Key Features:
Voice-first interface
Infinite context memory
Family collaboration
Starting at:
$9/monthly
H

Heptabase

Heptabase is a visual note-taking app designed for deep thinkers, researchers, and learners. It combines whiteboards, mind maps, and connected notes to help you understand complex topics through visual thinking and spatial organization.

4.60( reviews)
Key Features:
Visual whiteboards
Connected note cards
PDF annotation
Starting at:
$8.99/monthly
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memoryOS

memoryOS is a gamified memory training app created by a 2x World Memory Champion. It teaches scientifically proven memory techniques through interactive lessons and 3D virtual mind palaces, specifically designed to enhance long-term memory storage and retention.

4.60( reviews)
Key Features:
Virtual 3D mind palaces
Memory championship techniques
Spaced repetition integration
Starting at:
Free
O

Obsidian

Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. It lets you create links between notes and visualize the connections.

4.60( reviews)
Key Features:
Graph view
Bi-directional linking
Plugin ecosystem
Starting at:
Free
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Readwise Reader

Readwise Reader is a comprehensive reading app that combines article saving, PDF annotation, ebook reading, and advanced highlighting features. It's designed for serious readers who want to process and retain information effectively.

4.60( reviews)
Key Features:
Advanced highlighting system
PDF annotation
Ebook reading
Starting at:
$12/monthly

Can't decide which tool is right for you?

Whether you need the database power of Notion, the linking capabilities of Obsidian, or the AI assistance of Myself AI, our detailed comparisons will help you choose.