These funds have been around for decades. There's no indication that the historic returns are changing.
Specifically, for three decades. The first was started in 1975. At first, it was ridiculed and had very little money. After a bit of time, though, money started flowing into it.
Now here's where the whole system breaks down. The index fund requires the theory of efficient markets to work. The theory of efficient markets requires that the collective wisdom of the market will incorporate all available information in setting prices. Unfortunately, the very nature of the index fund is that the investors do not incorporate all available information. The index fund works great, so long as the amount of cash invested in index funds was not sufficient to be a market mover. Until 1975, the amount of money was zero, so no problem. Until around 1990, the amount was negligible.
Now, though, money is flowing into these funds, and it is skewing the market. There are companies getting investments which, in an efficient market, they simply wouldn't get. That is causing companies that have a high presence in these funds to be overvalued, at least on average. That will eventually correct itself, and a lot of investors who were promised free money will feel cheated.
There are forces more fundamental than historical rates of returns at work here. There's a reason that risk and reward are linked, and why there never is a true high reward investment that has low risk. If there were, someone would be giving away money.
But it won't be the US government. It will be you and I ... and our children.
We have three different ideas all competing. There is the "government invests the money" idea, in which case government owns the companies. Then we have the "government tells individuals how they must invest their money", in which case we have incredible graft and corruption, not to mention destrution of the "free" part of the free market. Finally, we have the "government tells people they must invest, but doesn't say how", in which case we have the problem of what to do with people who invest it badly.
In my opinion, all of those are worse than the current system which is basically, "government will take your money but promises to give you money when you are old, all the while doing accounting tricks to make it look like it is being invested."
And the sort of investment I'm talking about won't influence the actions and behavior of US industry any more than the US government already influences US industry via the mountain of legislation, rules and regulations it's created. It's laughable to hear someone defend the SS system based on concerns that the US government might influence US industry. The liberals supporting continuation of the SS system as is encourage such influence on a daily basis and far more intrusively than anything proposed here.[/QUOTE]