[azeirah]

> S-expressions are indisputably harder to learn to read.

Has this been studied? This is a very strong claim to make without any references.

What if you take two groups of software developers, one which has 5-10 years of experience in a popular language of choice, let's say C, and then take a group of people who write LISP professionally (maybe clojure? Common lisp? Academics who work with scheme/racket?) and then have scientists who know how to evaluate cognitive effort measure the difference in reading difficulty.