刚刚问它今天可不可以买index funds，它分析了行情之后给的最后总结如下

For a long-term investor (5+ years), today could be a reasonable time to buy index funds, especially if you’re dollar-cost averaging (investing fixed amounts regularly) rather than lump-summing. Markets are shaky, but history favors those who stay in over those who wait. If your horizon is shorter or you’re risk-averse, you might hold off for clarity—say, after Powell speaks or next week’s dust settles.