Yeah, exactly. The proposed changes allow the user to still specify the `--identity-file` option if needed, but makes it optional for the sake of those who don't need it. We should continue to support the `-i` flag, and use the `-i` flag in our examples (because most people are using a key generated by AWS and saved as a `.pem` file somewhere in their `~/Downloads` directory). However, I think it's overkill to make the `-i` flag mandatory, and just increases the amount of redundant boilerplate that the user has to type out every single time.