Is there a way to expand bash history references such as `!:0-` before executing without using the p option?

Question

There are multiple reasons why this is useful, including the ability to use shell completion to add a final argument to the command and the ability to see what command you are about to run without using the p option and needing to retype the history reference with an updated time value.

Answer 1

This works to always expand after you hit a space:

cat >> ~/.inputrc
$if Bash
    " ": magic-space
$endif