Field notes

Field notes on what correlations between fitness and adjacent domains tell us about improving physical activity.

• Local Minima: The Training Plateau Problem
  The personal best is not the true best.
  Sun Mar 29 2026
• Latency vs Throughput: The Architecture of Rest
  Rest is a design decision.
  Sun Mar 22 2026
• Sparse Rewards: Delayed Feedback in Physical Training.
  Progress often hides before it appears.
  Sun Mar 01 2026
• Underfitting: The Physical Performance Equation
  Testing the waters is not a training philosophy.
  Sun Feb 22 2026
• Overfitting: The Physical Performance Equation
  Robust learning doesn’t occur in perfect conditions.
  Sun Feb 15 2026
• The Prep Dividend: Warm-Ups and Data Preparation.
  No prep, no magic.
  Sun Feb 08 2026
• Why as Metadata in Physical Training
  How discipline fails without context.
  Sun Feb 01 2026
• Derivatives: Intensity vs Stability in Training
  Most people fail from high volatility, not low effort.
  Sun Jan 25 2026
• Debug Mode vs Release Mode: The Cognitive Load in Exercise
  Performance is what remains when monitoring disappears.
  Sun Jan 18 2026
• The Honesty Tax: Attention in Exercise and Learning
  Attention is the honesty tax that applies to both mind–muscle connection and depth of learning.
  Sun Jan 11 2026
• Physical Training as an Agentic System.
  What agentic systems and physical training share is this: they are only as effective as their ability to perceive, evaluate, and adapt within constraints
  Sun Jan 04 2026