The Rule of 70 and the Rule of 72 are two popular shortcuts that can help investors quickly estimate the doubling time of an investment. These rules are particularly useful for grasping the potential ...

Listen to more stories on the Noa app. This is Work in Progress, a newsletter by about work, technology, and how to solve some of America’s biggest problems. Sign up here. One of the hard-and-fast ...

At the age of 10, Benjamin Franklin left formal schooling to become an apprentice to his father. As a teenager, he showed no particular talent or aptitude aside from his love of books. When he died a ...