The Rule of 72 is a great mental math shortcut to estimate the effect of any growth rate, from quick financial calculations to population estimates. Here’s the formula:| betterexplained.com
Ratios summarize a scenario with a number, such as “income per day”. Unfortunately, this hides the explanation for how the result came about.| betterexplained.com
A sense of scale helps us better understand the world, and convey ideas more effectively. What’s more impressive?| betterexplained.com
Here’s a collection of time-saving math shortcuts, great for back-of-the-envelope estimates.| betterexplained.com