Is this GRRM’s account?

It means they have the option to do it or not do it and you have the option to not use it, which clearly your exercising. I’ve personally never had a situation where a lack of type hints slowed me down even a little.

They ignore types all together because typing is optional in python.

On the other side of the spectrum packet loss is a key feature of some of the layers below tcp, like path-mtu discovery.