3x GDP/student/year? That's an absurdly high estimate.
I hope you realized I meant that GDP per capita. Assuming you did and still think it's high, here's a more detailed estimate:
Let's arbitrarily pick the 10th country from bottom of the GDP per capita list by CIA Factbook: Niger. Now we can make some more concrete statements. On average Niger women have 7 children and presumably raise them on 2*GDP per capita income. This gives 0.28 of the GDP on raising a child. (Infant and childhood death rates seem to be negligible for this calculation, perhaps increasing average spending by 10% when assuming they make i...
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.