This post is inspired by the large number of articles in response to the release of the O level results. Well meaning educators start to assist readers in choosing between a Polytechnic and a JC. One of the ideas which has been around since I was 16 years old is the idea that if a person is academically inclined, he should go JC and if he is practically oriented, he should go to a Polytechnic. Throughout the 90s, the same argument was used to help A level students choose between NUS and NTU.

Before I begin, I’d like to say that even if you are an elite super-scholar married to a medical professor, policies concerning Polytechnics are important to you. Reversion to the mean in IQ means that while IQ is heritable, children of elites will be on average only slightly smarter than the median population. The median Singapore is …