His books are enjoyable, but they don't do much to challenge the reader's 'gray matter'. [='intelligence']
His hair is 'graying'. = He has 'graying' hair.
What will you do when you are old and 'gray'?
(..) that exists without a sexual dimension? They have sexuality as an evolutionary reproductive need. What imperative does a gray box have to interact with another gray box? Can consciousness exist without interaction? Anyway, (..)2014 Ex Machina
(..) Why did you give her sexuality? An Al doesn't need a gender. She could have been a gray box. Hmm. Actually, I don't think that's true. Can you give an example of consciousness, at any level, (..)2014 Ex Machina