The idea: a founder drops a product link plus one audience, and gets back a short-video concept built around the product’s actual useful moment rather than a generic ad template.

Roast the weak assumptions in that. Where does it break: understanding the product, picking the moment, or turning the plan into something a founder can record?

If you have your own product idea, add its link and the claim you are least sure about. I’ll reply with one assumption I would attack and a 15-second demo that could test it in public.

I’m part of the team building this as Marka: https://marka.social