Nobody is really happy with what's on their head. People with straight hair want curly, people with curly want straight, and bald people want everyone to be blind.
A strange weasel-built creature with a curly tail.
1958 - John McCarthy and Paul Graham invent LISP. Due to high costs caused by a post-war depletion of the strategic parentheses reserve LISP never becomes popular... Fortunately for computer science the supply of curly braces and angle brackets remains high.