[avmich]

Language should be natural enough for the person to use and good enough to apply for the problem at hand. We don't yet know how to have consistently good solutions for these requirements.

For me, {} are better than spaces - perhaps because of habits, but what will I get in - non-effortless - changing my habit in this place? "Add a few parenthesis" advice seems the opposite - don't we want not to have to use artifacts for clarification, but have simple and natural defaults working? Etc.

[redka]

It's not a choice of this versus that. In CoffeeScript you don't write spaces instead {} - you write neither. You express this with indentation anyway so why the extra boilerplate? CoffeeScript removes a lot of the excess work while TypeScript actually does the opposite.