Yes, the market goes up and down, but the historical trend is very clear. We can only hope that, in this case, past performance is predictive.
DJIA up 200%
Since December 2007.
Other signs also show the scars left by the Great Recession, which started in December 2007 as the collapse in housing prices threatened to sink some of the country's largest financial firms. For example, millennials today carry far more debt than Baby Boomers did at their age, data show. The median household income also is the same as it was in the 1970s in inflation-adjusted terms.
Wage growth also remains muted, although that trend long predates the financial crisis. Accounting for inflation, average hourly earnings have fallen in 2018, labor data show.
Since March 2009.
And, if you inflation-adjust it, from that peak of around 14100 it hit back in October 2007, it's more like up 55%, in 10 years. Suddenly, it seems kinda "meh", huh?
Recent article from CBS news
The 2008 recession cost the average person $70,000 in lifetime earnings.
https://www.cbsnews.com/news/how-much-the-2008-financial-crisis-cost-you-in-dollars/