Shane Parris - Decision By Design May 2026

The official course page on Farnam Street provides a detailed breakdown of the 12-week curriculum. Decision by Design - Farnam Street

How to Make Smart Decisions Without Getting Lucky . Mental Models: The Best Way to Make Intelligent Decisions . Shane Parris - Decision By Design

Learning how to play on "Easy Mode" by setting yourself up for success before a decision even needs to be made. The official course page on Farnam Street provides

Using tools like the 10-10-10 rule to evaluate how a choice will impact the next 10 minutes, 10 months, and 10 years. Learning how to play on "Easy Mode" by

Focusing on eliminating avoidable errors and "default" behaviours (ego, social conformity, and inertia) rather than just seeking brilliance.

The program is designed to help professionals and executives build a personal "mental operating system" for consistently making better decisions by moving away from emotional defaults and toward structured frameworks. Key Components of the Framework

is not a single article but a comprehensive 12-week online training program created by Shane Parrish , the founder of Farnam Street .