Do You Ever Have to Look at an Actual Brain?

i saw someone getting brain surgery on the t v. The parson like a violin player, y, and they operated on their brain while the parson was playing violin whale. That about, well, i haven't seen it, but m, i know certainly before you have brain surgery,. So like, say, people who have epilepsy may need to have a brain surgery because they have the electrical signa signa in their brains. And so am basically what you were saying, sort of about surgery. I mean, obviously you need every part of your brain. But the thing is with the brain, roughly speaking, we know where different activities take place. You've got 86 billion neurons