A new manifesto titled "The First Brain," authored by developer Serhii Kravchenko and published on GitHub, challenges the prevailing "Second Brain" trend in AI tooling. Kravchenko argues that the current generation of AI products, designed to store and retrieve information, is actively degrading human cognitive capacity. The document posits that instead of outsourcing thinking to external systems, developers should build tools that strengthen the biological brain itself.

The Cost of External Memory

Kravchenko cites the "Google effect," a phenomenon documented in a 2011 Science study by Sparrow, Liu, and Wegner, which found that people remember information less when they trust it is available externally. The manifesto contends that every act of outsourcing memory is also an act of "quiet deletion." Current AI tools optimize for convenience by removing the cognitive effort required for recall and comprehension, operations that cognitive science identifies as essential for building a robust mind.

Amplification Over Replacement

The core distinction in the manifesto is between "Replacement" and "Amplification." Replacement AI drafts, decides, and digests content, moving the user further from their own reasoning. Amplification AI, conversely, catches thoughts at the speed they arrive and drives them deeper into the user's understanding. Kravchenko draws a direct line to the 1956 concept of "Intelligence Amplification" (IA) by Ross Ashby, arguing that LLMs finally provide the technology to realize this vision, which was previously limited by the lack of machines that could understand thought.

Practical Applications for Builders

The manifesto outlines specific mechanisms for amplification, including capturing ideas during states of high creativity, such as walking or showering, where the brain is most open. It references Oppezzo and Schwartz’s 2014 Stanford study showing walking increased original idea production by 81%. Furthermore, it points to targeted memory reactivation during sleep, citing Rasch et al. (2007) and Rudoy et al. (2009), suggesting AI could eventually interact with biological memory consolidation processes.

Key Takeaways

  • The "Second Brain" trend may be causing measurable cognitive decline by removing necessary mental effort.
  • Developers are urged to shift from building AI that thinks for users to AI that helps users think better.
  • The manifesto provides a framework for evaluating AI tools based on whether they amplify or replace human cognition.

The Bottom Line

While this is currently a philosophical manifesto rather than a shipped product, it offers a necessary critique of the AI tooling space. Builders should scrutinize whether their products are creating stronger users or just more dependent ones.

Next Steps for Developers

Kravchenko invites the community to adopt the term "First-Brain product" for tools that align with this philosophy. He suggests that while the Second Brain solved the problem of storage, it ignored the problem of production. The challenge for the next decade is to build systems that respect the biological limits and strengths of the human mind, rather than trying to bypass them entirely.