Vaclav Havel once made an important distinction between optimism and hope. “Hope,” he noted, “is not the conviction that something will turn out well, but the certainty that something makes sense, regardless of how it turns out.” His is a voice of encouragement for would-be founders and investors to consider long-term forces at play anywhere they face uncertainty. And his is a message that seems important to consider in light of the attacks on US the embassies in Cairo and Benghazi on Tuesday.