I am dusting off a classic test for risk intuition. If you remember the test from years past, it will be nice to reminisce. If not, take the test now to assess your intuition and look at risk in a new way.
During the 1800s, mathematicians, and especially Cauchy, finally got around to rigorizing calculus. They got rid of the “infinitesimal” business once and for all, replacing infinitesimals with limits. It is troubling how widespread misunderstanding of calculus is 150 years later. Instead of understanding calculus from Cauchy’s rigorous standpoint, people embrace a hodge-podge of infinitesimals AND limits.