Way to get Inform to read any player input as a turn?

I don’t recommend this in general, but for something like a Petite Mort:

Letting time pass is an action applying to nothing.
Understand "time passes" as letting time pass.

Now, instead of ending your rules with:

reject the player's command;

Instead:

change the text of the player's command to "time passes";

This will convert all of those rejected commands into an action that makes time pass, with no other effects.

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