I've increasingly noticed people online using the following construction, sans "if":
Imagine you died on Spotify Wrapped day.
To my ear, it feels like the sentence should read:
Imagine if you died on Spotify Wrapped day.
I know that this is related to the subjunctive mood, but is the first construction correct as well? Or is the "if" necessary? Or is "imagine if" a colloquialism to begin with?
I've tried to research this topic but mostly find results on "imagine" used in the imperative sense.