The Super Mosquito proposal pursued speed through brute power

What was the design logic behind the Napier-powered Super Mosquito proposal?

Fit exceptionally powerful engines to the Mosquito and explore the resulting speed, even though the airframe might become the limiting factor.

The proposal starts with the successful Mosquito formula and adds some of the most powerful engines available. At that point, structural survival becomes part of the experiment. Jokes about the aircraft shredding itself or crossing the sound barrier mark the discussion as speculation rather than a calculated performance claim. Added engine power can move the limiting problem from propulsion to airframe strength and controllability.