why use the list after split as chunck?

[Victoriaheiheihei]

https://github.com/webpilot-ai/ChatLongDoc/blob/main/utils.py#L86

why len(text) =len(text.replace("\n", " ").split())?

The chunk is splited by str length in langchain. the chunk is splited by " " in your repositories. does this have any special meannings?