There are a lot of troubling statistics with retirement savings. If you follow Dave Ramsey, you may be a bit starry eyed. I used one of the vendor's he recommends and have averaged slightly less the 5% year over year average for the last 25 years. 2010-2020 ruined my averages. A lot of people are recommending buying the S&P 500 indexes but Nvidia, Apple, Alphabet (Class A & C), Microsoft, Amazon, Broadcom, Meta Platforms, Tesla, Eli Lilly, and Berkshire Hathaway make up 38% of that mix so there is a lot of tech pushing that index. The other issue is growth. In the 90's, companies waited 5-7 years to go private, now it's more like 14-years. Most of the growth is occurring on the private equity side.