 presuming you survive, you've had all that time for the brain to be shaped by your environment, which is the other huge, besides our sort of genetic biological blueprint environment, is just as important acting on that blueprint. So if you have 15 years of being able to be taught by your family and your community and just taking insights and sounds, that's another reason that on top of having a big fancy brain, we end up with so much knowledge and being able to share knowledge and probably what we call