this post was submitted on 25 Jun 2026
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Been doing this for years. I evangelize it all the time, and people still don't understand, or they try to make it more complicated than it is. But it's literally THIS easy, so easy. It's not even math at this point, especially if you only double the dollar amount and ignore the change, a kindergartener could do it.
Yet people refuse to learn a "new weird way".
You don't have to understand it, just do it. This is literally the easiest way. I will die on this hill.
they can't do basic arthimetic. yeah it seems super easy to you, but most folks don't know how to multiple by 2 without a calculator. and they refuse to learn.
i've met people who work in mathetmatics, like stats, and still can't do basic tipping without a phone to do it for them. it's just something they refuse to learn or practice, mostly out of fear they will get it wrong.