Unfortunately, if you took that advice back in 2000 you're probably still underwater. Index funds are great over long period time frames like 25+ years, but as

Unfortunately, if you took that advice back in 2000 you're probably still underwater. Index funds are great over long period time frames like 25+ years, but as always, you need to time your entry and exit strategies. Index funds work great overall for 401k and retirement funds because you're buying in every month so fluctuations up or down help you out. Just don't stick 100% in an index fund in the middle of an overvalued bubblish market.