> There's also another. Navigating TUI with Vim key bindings is very fast

I'm a heavy VIM user. Gmail supports VIM keybindings and there exist VIM keybinding extensions for all popular web browsers, i.e. Vimperator on Firefox.:wq

Many years ago, a mail reader, whose name temporarily eludes me, touted as one of its features that for the most common use case it could be driven with just two fingers on the numeric keypad, one for the enter key (which paged down and went to the next message) and one for the Del/. key (which skipped threads).

i seriously doubt that its faster than the normal keyboard bindings and mouse. and i enable vim mode in any editor i use.

and even if it were the truth: navigating mail generally consumes the least time... actually reading the mail and deciding what to do about it takes way longer. another activity where a scroll wheel is invaluable.

>navigating mail generally consumes the least time... actually reading the mail and deciding what to do about it takes way longer

Depends on the kind of email you receive.