When buying individual securities (e.g. 20 shares of Tesla), one may argue that they’re investing their money, but is that really what they’re doing?
If they’re answer to why they bought those securities is along the lines of “I really like what they’re doing.”, that’s not investing, it’s donating. Investing in a company you ‘believe in’ is like donating to a charity who has a cause you care about.
What then, is the difference between investing your money and donating your money? That is distinguished in post 3 tomorrow.