A more thorough explanation:

An investor is someone who takes a risk in order to make money in the future. They put their money into things like stocks, bonds, real estate, and other financial instruments with the expectation that they will become more valuable over time. The key thing that sets investors apart from other people is that they are willing to take risks. Investing always involves the possibility of losing some or all of the money that you put in.

There are two main types of investors: retail investors and institutional investors. Retail investors are regular people who invest relatively small amounts of money in things like stocks and bonds. Institutional investors are big organizations like banks, insurance companies, and mutual funds that invest large amounts of money in a variety of assets.

Investors can be passive or active. Passive investors buy and hold investments for a long time without trying to influence the companies they invest in. Active investors are more aggressive and try to influence the companies they invest in to make changes that will increase the value of their investments.

Investors are not the same as gamblers. Gambling is based on random outcomes, while investing is based on careful analysis of the risks and rewards of a particular investment. Investors try to calculate the risks involved in a particular investment and decide whether it's worth it.

However, investors are not always rational. They can be influenced by emotions, biases, and other factors that can lead to poor investment decisions. For example, during the dot-com boom, investors often invested in companies based solely on their name, without doing any real analysis of the company's financials. Similarly, during the 2008 financial crisis, many people bought homes they couldn't afford with mortgages they didn't understand.

Overall, investing is about taking risks in order to make money in the future. Investors are people who are willing to take those risks, but they need to be careful to avoid making poor investment decisions based on emotions or biases.