Another way of thinking, in fact, the top-level conditions should also be inaccessible to players, because there is a repair log. There should be two layers of protection to restrict entry. On the one hand, the tower mechanism will increase the pressure layer by layer to prevent upward movement. On the other hand, invincible NPCs are set up to patrol and guard. But there was a bug, so it didn't put pressure on Zhenzhen. And the NPC patrol is a step slower, so that Zhenzhen got the golden finger. Why here is a step slower can also be considered as setting the condition of "once the golden finger is touched, the invincible NPC will be awakened", which can explain why Zhenzhen turned over and repaired The log was all right, I flipped the golden finger, and the white-haired man appeared.