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@@ -38,7 +38,7 @@ a vinaigrette is 3 parts oil to 1 part vinegar. a bread dough is roughly 5:3 flo
einstein (probably) never called it the eighth wonder of the world, but compound interest does demonstrate something genuinely profound about multiplication: repeated multiplication (exponentiation) grows shockingly fast. $1000 at 7% annual return becomes $7,612 in 30 years. you've added $0 — multiplication did all the work.
-this same principle underlies population growth, viral spread, and nuclear chain reactions. it's why [probability in daily life](/wiki/immediate/probability-in-daily-life) matters so much for financial decisions.
+this same principle underlies population growth, viral spread, and nuclear chain reactions. it's why [[probability-in-daily-life|probability in daily life]] matters so much for financial decisions.
### mental shortcuts
@@ -52,6 +52,6 @@ people who are "good with numbers" usually aren't doing harder math — they're
arithmetic works. that's actually strange. why should the abstract rules governing numbers — which are themselves abstract objects — map so perfectly onto physical reality? why does 3 apples + 4 apples always give 7 apples, never 8?
-this is a baby version of wigner's "unreasonable effectiveness of mathematics" question that becomes much more dramatic at the [physics](/wiki/stem/physics) level. but it starts here, with the fact that addition works on apples, dollars, people, photons, and ideas — despite these things having nothing else in common.
+this is a baby version of wigner's "unreasonable effectiveness of mathematics" question that becomes much more dramatic at the [[physics|physics]] level. but it starts here, with the fact that addition works on apples, dollars, people, photons, and ideas — despite these things having nothing else in common.
-and these same four operations generalize far beyond numbers. [[structural/linear-algebra-as-thinking|linear algebra]] extends arithmetic to vectors and matrices — you can add vectors, scale them by numbers, multiply matrices. the operations feel familiar because they *are* arithmetic, lifted into higher dimensions.
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+and these same four operations generalize far beyond numbers. [[linear-algebra-as-thinking|linear algebra]] extends arithmetic to vectors and matrices — you can add vectors, scale them by numbers, multiply matrices. the operations feel familiar because they *are* arithmetic, lifted into higher dimensions.
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