The chicken has to exceed the boiling point of water for it to be cooked? Unless we’re making chicken caramels, I don’t think so.

That 205C would just be the surface temperature of the chicken, not the average

Are you sure? The numbers in the tweet talk about total mass and heat capacity. So I think that means the entire bulk has that average temperature.

See my edit

One thing’s for sure: a chicken slapped at 3726 mph won’t be very tasty. Or look too good.