Icosian Reflections

…a tendency to systematize and a keen sense

that we live in a broken world.

IN  WHICH Ross Rheingans-Yoo—a sometime economist, trader, artist, expat, poet, EA, and programmer—writes on things of int­erest.

Bad Graphs

In the wake of the announcement of Harvard's first wave of '18 admits, the Harvard Crimson is reports on the high-school demographics of Harvard's student body. The investigative article sheds some sunlight on just how much inequity exists between privileged "Harvard feeder schools" and the rest of the downtrodden teenaged proletariat.

Graph featured on The Crimson

That is, surprisingly little.

Oh, sure; the graph is concave. That means that...some schools sent more kids than other schools. Huh. How many more? Well, just reading the graph, something like 45% of Harvard students were the only admit from their school, and something like 78% are one of three or fewer kids from their high school. By contrast, the top schools send...15. A whopping five times more. Um. Right.

For contrast, this is what real inequity looks like:

Things on the right are people with obscene amounts of money. For reference, poverty-line America is ~95%tile.

(Yes, they're graphing different things, but the mathematical point remains valid.)

Or, on a brighter note, the cost-effectiveness

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