Investing also has to be viewed as 'control' and 'cashing out' and returns.
1) Go buy a stock like Google, Microsoft, General Motors, etc., it goes up, how much, how quick, etc., can I sell it to get my cash profit??
2) Go purchase equipment to go into business and work your rear-end of and provide something with good or great value that is needed or desired. You set your own destiny based upon the market, your service or products, your value-pricing and running of your company, etc. You always have the liquidation value of the equipment, property and other tangible assets you invested in when you began, etc.
3) Purchase and resell tangible assets, old muscle or antique cars, sports memorabilia, old-rare art-currency-other printed items, etc. Have the knoweldge and the contacts and know what you are doing. Be int he right spot at the right time, etc., etc.
4) Invest in other possible investment streams, such as crypto currency, gambling, gambling teams-schemes-crews, etc., and other 'start-up nothing backing or guaranteeing them except verbal talk and promises. What control and what level of risk can you take, afford, handle??
What I do know after 50 something years alive, a good 30 plus working and investing, is the easier-better-gold mine-no brain needed-make lots of money without risk or very little risk-etc., etc. etc, al carry super high risk and most of the time (most) a great loss of money.
I learned about 'Freedom Checks' and spend a good 1/2 day listening, learning, talking and researching it, I should have Face Time my little boy and played 'tiddly-winks' or got out my supply of transformers and call of duty (Halo) figures and played with him that day--it would have been a better use of 1/2 a day!