The human brain is regarded by the whole of modern science to be the most powerful natural computer in the known universe.
No, it isn't.
There are some scientists who claim that the brain is a computer. There are other scientists who dispute that.
Since this this is not a settled question, it is improper to talk of how science regards it, though there's nothing wrong with discussion how particular scientists regard it.
Fundamentalism - the anti-American, anti-Christian branch of American Christianity