Ad as two panels: the
situation without [the
product] and with it.
Identical framing in both
so one difference does the
persuading. One line below.

Before and After Diptych Ad

Identical framing twice; the difference is the entire argument.

Prompt

Design an advertisement as two panels side by side — the situation without [the product] and with it — identical framing in both so the single difference does all the persuading. One line of copy beneath.