I definitely agree there. Part of this whole philosophy is that all problems can be solved, because anything that is physically possible, can be achieved with the requisite knowledge. So all suffering in the world, is merely the result of a lack of knowledge, and since we are all knowledge creators, there is no reason to be pessimistic. Optimism is not an attitude or a state of mind, it's a claim about reality. We live in a universe where problems can be solved with the requisite knowledge, and we exist as entities who can create that knowledge! Thus our reality is intrinsically optimistic! :)