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A comment on The Presence of One’s Own Smartphone Reduces Available Cognitive Capacity (2017). Parent comment

Re:The Presence of One’s Own Smartphone Reduces Available Co... by richajak on Friday September 18, 2020 @02:45PM (#24520460)
I recently realized that I slowly lost my ability to do simple calculations that was used to be easy, eg total bill of grocery shopping before going to the cashier. I put the blame to the calculator app on my phone
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Re:The Presence of One’s Own Smartphone Reduces Available Co... by foxdev on Saturday September 19, 2020 @08:06AM (#24526870)
I could never do math in my head like this (with reasonable speed and accuracy), so I didn't lose anything.

I put an estimated cost by each item on the grocery list, total it at the bottom, and note whether the real prices are higher or lower than the estimate as I get things. It's never happened, but I can at least know if the register total is at odds with expectations.

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