A (very small) number of people on the planet are talented enough to play NBA level basketball.

A (very small) number of people on the planet are talented enough to write an engaging novel about Mycroft Holmes, the smarter, older brother of Sherlock, and so mysterious that he is said to be the secret power behind the British government.

To my knowledge, the only person on the planet talented enough to do both of these things is Kareem Abdul-Jabaar.