This article seeks to explain revolutionary Iran's convoluted rise to regional prominence over the last three decades. We hold that perceptions and misperceptions of regime stability (both of one's self and of others) by the relevant actors have played a major role in Iran's recent. The main logic is that the success of many strategies employed by relevant regional actors to augment their regional influence (both Iran seeking more influence and others seeking to stem that influence) have crucially hinged on making correct assessments of regime stability. This study has both theoretical and empirical findings. Theoretically, we find that failures to accurately estimate regime stability stem from three main sources: (1) objective uncertainties regarding the target state's level of regime stability, given the high strength of societal forces shaping state-society relations in the Middle East and given the distinct variation between autocrats in terms of their ability to develop effective counterrevolutionary/repressive tools; (2) ideological blinders, from which both the United States and regional actors frequently suffer, which have often led them to be falsely optimistic regarding the existence of either subversive opportunities or opportunities to stabilize regimes facing domestic pressures; and (3) incorrect theories regarding sources of regime stability which lead experts and policymakers to overlook factors which may destabilize a regime. This article has two major empirical findings. First, Iran's rise may be at least partly attributed to Iran demonstrating a slightly better learning curve at the tactical level (i.e., learning subversive skills from its Lebanese experience in the 1980s-1990s and applying them to Iraq in the 2000s-2010s) as well as at the strategic level (i.e., understanding the limits of its subversive capacities and correctly assessing when it can engage in successful stabilizing operations). Second, two errors committed by the United States have been far more consequential than those committed by Iran for the regional balance of power: First, the George W. Bush Administration myopically opened up subversive opportunities for