"Code is read more often than it is written". Reading Ada is so unambigous, and clear. If you mean if then, you have the keyword then, when you want to say procedure you say procedure and you can read that. Rust? fn, because is it fun, or functor, so fuck you.
Cd is rd m thn it is wrtn, it is esr to rd function thn to prse fn rclnt function and cont rdn.
Yes, I do want to read out what I type and possible speak it to collegues without sounding like I have a fn seizure.
The problem is that "fn" is optimizing the WRONG things: not only is your code going to be read more than it is ever written, but this abbreviated form is actively hostile towards domain-level subject-matter experts that you may want to audit or verify your code. Now, instead of him jumping into code that reads like English (Ada), now he has to 'decode' Rust BEFORE AND DURING his evaluation of the code, distracting him from his purpose.