Yes, you can build passive income through stocks, forex, and crypto. It is also true that despite being the new market, crypto has helped a lot of people to build a great income in a short time. However, in order to build passive income through stocks, forex, and crypto, you need to invest. How much passive income you can make through investment depends on your total investment. Generating passive income through investment is also very risky. For instance, when the market goes down the value ot your stocks and crypto will also go down, and when your assets' value goees down, your income will be substanatially affected. Likewise, forex is not completey a pssive income, you need to trade foreigh currencies to profit and the trading activities are not completely passive. Having said that investment is one of the easiest ways to generte pssive income. You cana mke money while sleeping.