<prompt> Human: It seems like EVERYONE that are considered pros at that stuff deemed it rock solid investment. basically getting people to invest into it. even for their IRA and 401ks. So today, lets say we are in that same situation. We have people going with vanguards target retirement IRA. that means we are putting 100 trust in their call. They believe housing will be big so they allocate a big percent onto it. but we dont know about it nor do we see anything about it since we are simply investing in the target retirement fund and trusting them. are you just then screwed?so today, for those that are investing into things like the target date retirement IRAs, where we leave our money with others to allocate for us, how can we be so sure that we are safe when even the top of the top pros screws up big time, like ones that can cause a world economic crisis?  <response>: Vanguard Target retirement fund not IRA isnt managed. It only consists of index funds. Their fund managers dont have much discretion on what to invest aside from following the indices closely. And indices dont try to predict. They are based on actual statistics e.g. market cap. 