Not just 'strong', surely. It's an undeniable clincher. A knock-out blow. You should at this point in proceedings have withdrawn from the debate shamefacedly, tail between legs (note: first grow tail, as we great apes aren't fitted with them as factory standard).

Then again, perhaps the inability to tell the difference between 200 and 2000 might reveal the slightest chink in your opponent's otherwise impregnable intellectual armour.

A dab of the magic sponge, and come out swinging for a final round!