However, without serious challenges, cultural stagnation has set in within the Autobots' ivory tower of Iacon. Space exploration has dwindled, and the Autobots never discovered Earth. Prime is a distant, hands-off leader, leaving enforcement to his Guardians and lieutenants. The Autobots have grown lazy and weak, while envy grows within the Decepticons outside the walls, and the Quintessons gaze at the fractious world, seeing it ripe for the picking. The Bots have become soft without the constant threat of Decepticon attacks. They're complacent. Things seem calm and safe within the dome of Iacon, but should the Guardians be somehow compromised, the Autobots would likely be slaughtered.