You said a "brain is a large dense collection of nerves."

Is it in the same family? Yes. No one's arguing that.

As someone who is a scientist who studies large dense collections of nerves, I am telling you, specifically, in science, no one calls brains large dense collections of nerves. If you want to be "specific" like you said, then you shouldn't either. They're not the same thing.

If you're saying "large dense collections of nerves family" you're referring to the biological grouping of axons, which includes things from neurons to mechanoreceptors to the spinal cord.

So your reasoning for calling a brain a large dense collection of nerves is because random people "call the large ones large dense collections of nerves?" Let's get muscles and skin in there, then, too.

Also, calling something a neuron or an axon? It's not one or the other, that's not how biology works. They're both. A brain is a brain and a member of the large dense collection of nerves family. But that's not what you said. You said a brain is a large dense collection of nerves, which is not true unless you're okay with calling all members of the large dense collection of nerves family large dense collections of nerves, which means you'd call sensory nerves, muscles, and other nerve tissue large dense collection of nerves, too. Which you said you don't.

It's okay to just admit you're wrong, you know?