  There is a serious difficulty with Ramsey Mark I: it is not coherent. Infinite sums don’t necessarily converge. For any \(\{C(t)\}\) for which the infinite integral doesn’t converge, \(V(0)\) doesn’t exist. If the integral is non-convergent for every feasible consumption streams \(\{C(t)\}\), the maximization problem is meaningless: One cannot maximize something that appears to be a real-valued function \(V(0)\) when in fact the function doesn’t exist.