I am aware of kickstarter, but I think it is the sort of investment that is mostly inappropriate for me at my age
Most of the money in the stock market does not fund anything much. When I buy a stock in some company, the money rarely goes to the company, it goes to a previous owner, who bought it from some other previous owner. The only way that my buying the stock can help the comp[any is if the stock increases in price, and then the company issuing the stock can sell at a higher price. The real purpose of Wall Street is to provide a market to buy and sell already issued stock.
One mutual fund I own is an Exchange Traded fund called ishares NASDAQ Biotechnology. It was first offered at $100 a share in 2001.Now it is selling for $364 per share.
It owns a bunch of biotech companies that sell shares on the NASDAQ.
I imagine that most of the stocks it owns have been traded dozens of times.