It brings a great element of unpredictability, not only because they both can win the title, but because we're in good hands regardless of which one of them wins. (sbnation.com)
Between financial market returns and inflation, there is a strong element of unpredictability to retirement saving. (getrichslowly.org)
This plays like the single player game, but the human opponent just adds the whole new element of unpredictability. (thevrgrid.com)