Avoid blundering: 80% of a winning strategy

Perceived Triviality / Tautology

• Many see “don’t blunder” as tautological: you only know a blunder after the fact, and “avoid mistakes” sounds like “to win, don’t lose.”
• Critics argue this isn’t actionable without concrete guidance on how to recognize blunders ahead of time.
• Some note that engine-defined “blunders” are just large drops in win probability, so correlating blunders with losses can be close to circular.

Blunders in Chess and Other Games

• At lower levels, chess and many games are dominated by simple tactical errors (hanging pieces, missing checks); avoiding these is indeed most of improvement.
• Several analogies: tennis, table tennis, sim racing, squash, golf, card counting in blackjack, poker, esports. Theme: consistency and avoiding unforced errors often beat occasional brilliance.
• Others stress that at high levels (pro tennis, strong chess, high‑ranked online games) players already don’t blunder much, so proactively creating and exploiting small edges becomes decisive.

Startups, PMF, and Survival

• Some accept the analogy: most startups are “amateur level”; basic avoidable errors (bad cofounder dynamics, no customer contact, overscoping) kill them before deeper strategy matters.
• Others argue startups are driven by tail events and product‑market fit: a few big wins or the right product can outweigh many operational blunders.
• Counterexamples given where strong PMF companies still died from founder disputes or execution failures; others claim software’s high margins let you survive massive mistakes if product is loved.

Limits of the Analogy & Role of Luck

• Business is neither zero‑sum nor perfect‑information, unlike chess; many “blunders” are only recognizable in hindsight.
• Some emphasize heavy‑tailed outcomes and “black swan” failures or successes: you can avoid 99 small errors yet die from one catastrophic one.
• There’s debate over how much luck versus skill and error‑avoidance really drive outcomes.

Practical Anti‑Blunder Mindsets

• Focus on fundamentals: defensive driving, basic software testing/monitoring, avoiding overcomplicated architectures, writing design docs, conservative sales behavior, simple reliable cooking.
• Several suggest checklists and habits (in chess: always scan for checks, captures, undefended pieces) and reflecting on failures, not just “failing fast.”
• A recurring meta‑theme: “don’t shoot yourself in the foot” and “get out of the way” of processes that already work.