The straggler asked the traveler if there was anything that changed history. According to the relevant information query, the traveler said nothing about the king of the tree of kindness, and instantly predicted what the stragglers would do if they got the answer (modifying the world tree), and was shocked by this question (the crazy idea of stragglers). At the same time, the laggards also got the answer from the traveler's undisguised shocked expression (which can change history). The traveler didn't say anything, and the stragglers didn't need the traveler to speak. But we should remind him here that only records, not events, can be changed. In a practical sense, past records and events are part of history. The stragglers misunderstood here, thinking that what can change is the event.