Mathematical Acuity Lost

Numbers, numbers, numbers. Even though my career was in brand, new product, and corporate strategy, I was always very good with numbers. Sometimes people would think I had a finance background.

I could tear apart an income statement, market research survey, pricing/margin structure, marketing budget, or ROI better than most. I remember that I could very quickly – almost instantly – add, subtract, multiply, divide, and do percentages & indices in my head.

I’m afraid those days are no more. We’re traveling now with another couple who own a small retail business. I’m shocked how fast he is with numbers.

He’s my age, but spends a lot of his time working through prices, sales figures, mark-ups, discounts, profits, and taxes. He’s as fast as I probably once was, but am not any longer.

Now, if I need to do simple math for dividing a dinner bill, figure out an exchange rate, or convert km to miles per hour on the Autobahn, I reach for my phone. Siri gives me a quick answer, but not as quick as I used to be in my head.

They say, ā€œwhat you don’t use, you loseā€. That certainly seems to be the case with math on the fly for me. What everyday mental skills do seem to be losing in retirement?

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2 thoughts on “Mathematical Acuity Lost

  1. Chief, I don’t think slippage in Mathematics is attributable to growing older. Slippage in math ability is a function of practice, just like playing a sport or music. I remember when I first graduated from college and the aerospace company I was working for had a complex problem involving Calculus that needed to be solved. I solved it in a couple minutes and gained a reputation as a math wizard but was really just in practice. Today, it would take me weeks to solve this sort of problem because I would need to review.

    However, areas of math that I am better at today than I would have been back in my twenties include dividend investing, household budgeting, taxes and scheduling. If I could travel back in time and teach my 20-year-old self this math, I would be ahead of where I am today. I cannot, but I can share this knowledge with my son’s.
    Mathematics is tool and you use tools best if you use them all the time and are well practiced.

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    1. I agree 100%. My buddy is the same age as me. Uses math all day long. My retirement has caused mathematical atrophy! šŸ™‚

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