This week on Galvoro — week 19, 2026

New capsules

• EXPLAIN

  Means, Standard Deviations, and z-scores

  by Sacha Epskamp

• PLAY/LEARN

  Statcheck the Game

  by Sacha Epskamp

• PLAY/LEARN

  T Party

  by Sacha Epskamp

• PLAY/LEARN

  Vax!

  by Ellsworth Campbell, Isaac Bromley, et al.

• EXPLAIN

  Covariance & Correlation

  by Sacha Epskamp

• EXPLAIN

  Samples, Sampling Distributions & the Standard Error

  by Sacha Epskamp

• PLAY/LEARN

  Battle Bayes

  by Sacha Epskamp

• PLAY/LEARN

  Correlation Hunt

  by Sacha Epskamp

• PLAY/LEARN

  Probability Gems

  by Sacha Epskamp

• PLAY/LEARN

  Extreme Galton

  by Sacha Epskamp

• PLAY/LEARN

  X-Validate

  by Sacha Epskamp

• EXPLAIN

  Herd Immunity

  by Galvoro (this explainer); simulation core by Ellsworth Campbell, Isaac Bromley, et al.

• EXPLORE

  The Evolution of Trust

  by Nicky Case