How to Think Like a Genius 8— Mental Math
Author(s): Scott Douglas Jacobsen and Rick Rosner
Publication (Outlet/Website): Medium (Rick Rosner)
Publication Date (yyyy/mm/dd): 2017/07/22
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Scott Douglas Jacobsen: Just give us a primer, why is mental math less important now? What math skills are more important now?
Rick Rosner: In terms of getting along in the world?
Jacobsen: Yea.
Everybody knows it, but that knowing stuff is less important than knowing how it find stuff, and it’s been that way ever since the internet got good. But you have to know what you need to know, part of that is skill at coming up with mathematical models of the world around you, being able to estimate stuff, being able to break the world down into — being able to understand the world well-enough to be able to know what you need to look up to see what’s going on, a lot of which is modelling.
Not like the stuff that Kylie and Kendall Jenner do, but you figure out a system that explains, roughly — that tries to roughly explain what you’re dealing with, what you’re trying to analyze. Though as references get more sophisticated, you don’t — there’s less and less of that that you need to do in most instances. You just need to come up with the right words to describe what you’re seeing and odds are now compared to 20 years ago when the internet sucked that there is something on the internet that will tell you more of less what is going on.
Whether it’s a set of medical symptoms or something that you’re thinking about buying stock in, or you’re trying to figure out whether reverse mortgages are a rip-off, they are. Though if you don’t care how much money you lead your heirs, they can still be a thing that you do.
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