If he says it will, and it doesn't, he is lying, so it will grow, but it grows, so he was telling the truth, so it grows, but he was telling the truth, so it doesn't grow, which means he was lying, so it will grow, which means he was acutally telling the truth, so it won't grow, which means he was in fact lying, so it will grow, etc, etc
It will not grow. The system enters a cyclical equilibrium, in which the status quo is the Condorcet winner.
/thread