The theory says, by cooking meat, it makes it easier to digest, creating less work for our stomach / more blood and energy for the brain, which helped us evolve into homosapiens . Considering we are well into the evolutionary stage, and still mostly eat cooked meat, it’s all good!

Even if you want to eat raw and don’t fully trust the source and cold chain, it may be a good idea for meats to cook the sides really quickly in a hot pan. In that way, you kill all bacteria (they live in the surface as they need oxigen) and you still get the raw meat inside.