How to Use Em Dashes (–), En Dashes (–), and Hyphens (-)

I refuse to care about this. A single dash is all I will ever use. I see no possible reason to use the other two.

Throwing my hat in here. The sub millimeter difference in the length of a dash conveys no additional meaning or clarity. It is impossible to argue me out of this position.

It's not like you can reliably write these consistently by hand either without going over the top in length to make it extremely obvious.

Length of breath/pause with a longer dash. Read some -- Emily Dickinson poems – you'll find a world ––– of meaning ––– in the millimeter.

I have read her in the past and can't say there were world's of meaning between -'s. Can you link an example? I looked again and couldn't see any obvious ones. Generally she just completely abused the -. Does she even use a comma once? lol

worlds. world's would indicate that a world owns something.

Also, you can just write -s instead of -'s as the apostrophe indicates possession