In those languages where it is not semantic, proper indentation still gives visual clues to the semantics: With proper indentation one can read programs in lots

In those languages where it is not semantic, proper indentation still gives visual clues to the semantics: With proper indentation one can read programs in lots of languages even without their specific semantic markers. A simple way to see this is to configure your editor's syntax highlighting to use the background color for parenthesis, semicolons or whatever the markers are in your language of choice.