> Brackets are the mathematical notation for a set, and having a set of instructions inside them makes perfect sense even if the set only has a single element.

> Brackets are the mathematical notation for a set, and having a set of instructions inside them makes perfect sense even if the set only has a single element. Then you consider that sets are unordered, and then the analogy doesn't make any sense any longer since the order matters for instructions. Personally I think brackets are so important in C-like languages because they're such a pain for me to write on my keyboard.