Take the following as truth: Aside from the occasional Ted Turner bombshell, the Gateses seem to have just about guaranteed themselves the top slot on The Slate 60 for the rest of their lives, even if they never give another nickel away.
Then the following statement: "Ted Turner could never give any more money away and still be guaranteed the top slot on The Slate 60, although the Gates family might change that." is true, false, or inconclusive?