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'Fermi problems' directory

  • See Also
  • Gwern
    • "How Many Shower Controls Are There?", Gwern & Pro 2023
    • "Conference Fermi Problems", Gwern 2025
    • "Miscellaneous", Gwern 2009
    • "Towards Benchmarking LLM Diversity & Creativity", Gwern 2024
    • "Startup Ideas", Gwern 2017
    • "CrossFit Rhabdo Rates", Gwern 2013
    • "Plausibility of Oreimo's Kirino", Gwern 2013
    • "How Many Numbers Does One See per Minute?", Gwern 2013
    • "How Long Would It Take to Read Every Book Ever Written If Every Human Started Reading Now?", Gwern 2014
    • "It Would Cost >$100b to Replace All the Warheads in the US Nuclear Arsenal", Gwern 2014
    • "The Warm Equation of the Lifetime Odds of Being Pooped on by a Bird", Gwern 2016
    • "Prediction Markets", Gwern 2009
    • "Silk Road 1: Theory & Practice", Gwern 2011
    • "Modafinil", Gwern 2009
    • "Girl Scouts & Good Corporate Governance", Gwern 2011
  • Links
    • "You Can Use Any Phone With a Barometer to Make a Scale. All IPhones Since the 6...", cryptozo 2025
    • "Caesar's Last Breath", Sabino 2025
    • "Show HN: Wordle-Style Game for Fermi Questions"
    • "Introduction to Fermi Estimates"
    • "Fermi Calculation Examples", Gwern 2019
    • "Fermi Problem: Power Developed at the Eruption of the Puyehue-Cordon Caulle Volcanic System in June 2011", Asorey & Davalos 2011
    • "Caloric Restriction Delays Disease Onset and Mortality in Rhesus Monkeys", Colman et al 2009
    • "FLEEP: The Collected Comic", Shiga 2002
    • "On Number Numbness", Hofstadter 1982b
    • "Man's Size in Terms of Fundamental Constants", Press 1980
    • "Estimation--Part I: How to Do It?"
    • "Risk Management and Sounding Crazy"
    • "Quantified Intuitions: An Epistemics Training Website including a New EA-Themed Calibration App"
    • "The Estimation Game: a Monthly Fermi Estimation Web App"
    • "Some Key Numbers That Every Effective Altruist Should Know", benthamite 2026
    • "Napkin-Math: Techniques and Numbers for Estimating System's Performance from First-Principles", sirupsen 2026
    • "How Should Mathematics Be Taught to Non-Mathematicians?", Gowers 2026
    • "Neurotechnology Numbers Worth Knowing", Cvitkovic 2026
    • "Reactionary Philosophy In An Enormous, Planet-Sized Nutshell"
    • "What If?", Munroe 2026
    • "Fermi Estimates"
    • "Fermi Estimates"
    • "Inside/Outside View"
    • "/r/estimation"
    • Wikipedia (14)
  • Miscellaneous
  • Bibliography

See Also

Gwern

"How Many Shower Controls Are There?", Gwern & Pro 2023

How Many Shower Controls Are There?

"Conference Fermi Problems", Gwern 2025

Conference Fermi Problems

"Miscellaneous", Gwern 2009

Miscellaneous

"Towards Benchmarking LLM Diversity & Creativity", Gwern 2024

Towards Benchmarking LLM Diversity & Creativity

"Startup Ideas", Gwern 2017

Startup Ideas

"CrossFit Rhabdo Rates", Gwern 2013

CrossFit rhabdo rates

"Plausibility of Oreimo's Kirino", Gwern 2013

Plausibility of Oreimo's Kirino

"How Many Numbers Does One See per Minute?", Gwern 2013

How many numbers does one see per minute?

"How Long Would It Take to Read Every Book Ever Written If Every Human Started Reading Now?", Gwern 2014

How long would it take to read every book ever written if every human started reading now?

"It Would Cost >$100b to Replace All the Warheads in the US Nuclear Arsenal", Gwern 2014

It would cost >$100b to replace all the warheads in the US nuclear arsenal

"The Warm Equation of the Lifetime Odds of Being Pooped on by a Bird", Gwern 2016

The Warm Equation of the lifetime odds of being pooped on by a bird

"Prediction Markets", Gwern 2009

Prediction Markets

"Silk Road 1: Theory & Practice", Gwern 2011

Silk Road 1: Theory & Practice

"Modafinil", Gwern 2009

Modafinil

"Girl Scouts & Good Corporate Governance", Gwern 2011

Girl Scouts & Good Corporate Governance

Miscellaneous