Dr Karl

So the good news is that you can recover from whatever damage was caused.

So some damage was caused and you can recover from it.

So the first example is way back when CAT scanners were first invented and

And they were trying to work out how to make this complicated technology work and they were just testing it on each other.

And there was a guy there who was a physics honours graduate.

He had an IQ of 123 and he said, oh, yeah, my turn to scan me.

Now, in your brain, in your head, you've got firstly this hard skull, then some skinny membranes, and then the brain meat, the flesh of the brain, and then a hollow chamber in the middle with liquid.

And the brain meat is, I don't know, 50, 60 millimetres thick.

He had one millimetre.

Not 60 millimetres, right?

And it doesn't show that you don't need your brain.

It says that you can recover from trauma or defects and still have a normal life.

Okay, so that's the first message of good hope.

And the second one is that people who have suddenly acquired blindness for whatever reason in life and learn braille, they're not using their visual cortex anymore and

And they retrain their visual cortex, two areas the size of a ping pong ball at the back of your head, to do the braille.

You and I do braille.

We do it at the front part of our brain.

They do it in the visual cortex of the back.

So you can retrain your brain.

So you've had an injury, and the good news is you recover from it.