At my age, I no longer care about Jungian tests of my original head. The sharpening, permanently doubled my intellectual capacity.
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
The sharpening of my head produces a coronal discharge. This causes sparks to be emitted when the air is dry. Because of this an eerie glow is concentrated at the apex. This makes people think I am bright regardless of that IQ nonsense.
In mathematics, you don't understand things. You just get used to them.
I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.