• StabbingSky@lemmy.zip
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      5 days ago

      Napkin math disclaimer

      Cost of Iran war so far: $43.6b

      Number of people in the US with drivers license: 242.1m

      Average EV cost: $55k

      Number of households: 133m

      Average rooftop solar cost: $22.5k

      Cost to give everyone EVs: 242.1m × $55k = $13.3b

      Cost to give every household rooftop solar: 133m × $22.5k = $3b

      Total cost: $16.3b

      We’d have enough to do it almost 3 times.

        • StabbingSky@lemmy.zip
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          4 days ago

          Nah, I messed up looking at the answer, not with the math.

          Edit: it’s wild that I was downvoted for admitting my mistake.

          • wicked@programming.dev
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            4 days ago

            Nah, I messed up looking at the answer, not with the math.

            You messed up the math, so how is this admitting your mistake?

            • StabbingSky@lemmy.zip
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              4 days ago

              No, I didn’t. The math was fine, it was me not counting the places in the answer correctly that was the problem.

                • StabbingSky@lemmy.zip
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                  4 days ago

                  No, it’s not. The numbers used to derive the answer were correct. I did not forget to multiply by the K. I read the answer wrong when I transferred it.

                  My math was correct, my reading wasn’t.

                  • wicked@programming.dev
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                    4 days ago

                    Cost to give every household rooftop solar: 133m × $22.5k = $3b

                    Should be “133m × $22.5k = $3000b”… or 3 trillion. You don’t think the right side of the equation is part of the math?