The Big Boss has some expertise in the aspect of space, especially since it once used a spatial anchor position to locate the Redwood Essence.
By observing this spatial anchor position, it can determine that the space here is relatively stable.
As for the other Netherworld Islands that occasionally disappeared or drifted, the Big Boss doesn't know the reason for this, as there are just too many strange things cultivators might encounter, but it can confirm that there's no problem with this island.
It even believes that those drifting Netherworld Islands in the past might have been the work of the Redwood Essence. However, the island where the Redwood Essence's main body is located certainly wouldn't drift around randomly.
