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Browse by question, then by topic. A directory of 231 notes and collections found beneath the personal homepage, including nested pages. Updated October 14, 2026.

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Alex K. Chen — catalytic stochastic cockatoo

Start with what you want to do

Connections across fields

These are suggested reading paths, not claims that the same mechanism operates identically in each field.

Diversity, exploration and novelty

diversity → RL notes → OPEN ENDED INTELLIGENCE → serendipity

Gating, state changes and intervention

Neuroplasticity → Dopamine → TMS → 40Hz

Sparse coupling, resonance and bursts

Selective Resonance: A History of Sparsity, Harmonics, Koopman & Pseudospectra → Sparsity → sparsity and serendipity → Bursts

Transport, lifting and multiscale structure

optimal transport → Wasserstein distances and optimal transport → simplicial complexes → Multiscale

Observability, feedback and agency

neurotech → human agency/resisting disempowerment → Robust Cyberdefense Requires Modeling Strange Loops → formal verification

Variation, noise and substrate computation

smart materials → multiscale → Purity/Noise → Biochemistry

Complete topic directory

Open a topic below. Each page has one primary location here; the paths above provide additional connections. Descriptive labels clarify vague titles without changing the original page titles. Source labels reproduce explicit page labels where available; “Notes / mixed sources” does not assert authorship.