A token is a token. PEPpy Python's four spaces are isomorphic to Lisp's left banana and C++'s curly brace. An ASCII <bell> would be just as well with a lexer.
White space has significance for humans. The road to the Turing tarpit is paved with human intentions. Describing computation mathematically is a solved problem. Expressing it clearly for and by humans, not so much.
White space has significance for humans. The road to the Turing tarpit is paved with human intentions. Describing computation mathematically is a solved problem. Expressing it clearly for and by humans, not so much.