Open an Unnamed Buffer

There are two ways (that I know of) to open an unnamed buffer.

The first is before vim has even been launched. You can simply execute vim from the command-line without any arguments. Follow that by invoking :ls to see that the current and only buffer has no name.

The second method is with a vim session that is already open. If you invoke :new, a new buffer will be created that, like the first method, has no name.