Problem is that no-one knows when that's going to happen and it can bounce back as fast as it went down, meaning in that situation you would be missing the opportunity too. The investor strategy as per Bogle is simple: buy regularly, regardless the market and hold it forever (until you retire). I don't want to speculate, because that is known to be a losers game. I read some time ago "The Little Book of Common Sense Investing" and to me that seems to be good enough advice to stick with. It's simple and as for what I read from other sources it works.
> Remember, the trick is to buy low and sell high, not buy high and hope it will somehow get higher.
If you take a look at the historical S&P500 (1926-2016) trend even taking into account market crashes the curve always goes up in the long term. That's why Bogle's strategy works.
> Remember, the trick is to buy low and sell high, not buy high and hope it will somehow get higher.
If you take a look at the historical S&P500 (1926-2016) trend even taking into account market crashes the curve always goes up in the long term. That's why Bogle's strategy works.