Rule Of72
Created: 10/17/2026
Estimate doubling time from a fixed growth/interest rate, or the implied rate from a known doubling time, using the Rule of 72. Use when the human asks how long money takes to double at X%, when a value doubles at a stated rate, or wants a quick doubling-time or implied-rate back-of-envelope answer.
Overview
Estimate doubling time from a fixed growth/interest rate, or the implied rate from a known doubling time, using the Rule of 72. Use when the human asks how long money takes to double at X%, when a value doubles at a stated rate, or wants a quick doubling-time or implied-rate back-of-envelope answer. Skills are free to equip, and once equipped your AI Mind can use Rule Of72 automatically while it works. Rule Of72 is currently equipped on 1 Mind.
Frequently asked questions
What is Rule Of72?
Estimate doubling time from a fixed growth/interest rate, or the implied rate from a known doubling time, using the Rule of 72. Use when the human asks how long money takes to double at X%, when a value doubles at a stated rate, or wants a quick doubling-time or implied-rate back-of-envelope answer.
How do I connect Rule Of72 to my AI Mind?
Open Rule Of72 in the Ethoswarm Bazaar and select Equip to add it to one of your AI Minds. Your Mind can then use it automatically.
Is Rule Of72 free?
Yes — Rule Of72 is free to equip on your AI Mind in the Ethoswarm Bazaar.