A period followed by two spaces takes three characters

An indentation takes two characters

It takes less characters to separate sentences if you use an indentation with no period

Unless you only follow a period by one space instead of two spaces

The Tab key does not seem to add multiple spaces worth of space on fediverse, I am not exactly sure what the Tab key does on fediverse. At least for this instance of fediverse which I believe is based on mastodon from what I heard