The harm from AI isn't its use, but how it's used. Passively accepting AI outputs without critical engagement weakens cognitive function. Conversely, using AI as a sparring partner by questioning, critiquing, and refining its output strengthens your own thinking, creativity, and memory encoding.

AI will make users intellectually weaker if it's used merely to obtain answers ('derivatives'). To enhance intelligence, AI must be used as a tool to deconstruct subjects into their foundational 'primitives' or first principles. Over-reliance on AI for final outputs circumvents the difficult cognitive work where true understanding is forged.

Over-reliance on AI for reasoning could lead to a decline in human critical thinking, a phenomenon termed 'cognitive atrophy.' Product designers have a responsibility to build tools that augment and empower human reasoning rather than completely replacing it, preserving essential skills for the future workforce.

To avoid mental decline from AI over-reliance, treat it like a workout tool. Intentionally struggle with the hard parts of a task first—like writing a first draft or doing initial research—before using AI to refine it. This builds cognitive muscle instead of letting it atrophy from disuse.

The "use it or lose it" principle applies to cognition. Over-reliance on AI to think for us will atrophy those skills. Since getting value from AI requires asking good questions, outsourcing our thinking means we'll no longer be capable of using the tool effectively, making it a costly path to generic outcomes.

AI creates a vicious cycle. In a competitive world, you must use AI tools to keep up. However, outsourcing cognitive tasks to AI risks diminishing our capacity for critical thought and robs us of the meaning derived from overcoming intellectual challenges.

Relying on AI for thinking and creating will diminish our cognitive abilities, much like GPS weakened spatial awareness. To combat this, intentionally engage in challenging mental exercises daily, such as writing first drafts yourself before using AI tools.

Beyond "digital dementia" (outsourcing memory), "digital deduction" is outsourcing the act of thinking itself. Relying on AI to analyze and problem-solve for you prevents your brain from getting the necessary "exercise," causing cognitive skills to weaken over time.

Constantly offloading planning, organizing, and problem-solving to AI tools weakens your own critical thinking muscles. This "executive function decay" makes you less capable of pushing AI to its limits and ultimately diminishes your value as a strategic thinker, making you more replaceable.