It is possible to earn $100-500k per year and more than that without investing anything. Not all businesses require working capital and to start your business career you shouldn’t start with a business that requires working capital. What you need to start a business is to develop your income skills. To have the ability to make a lot of money and to do that one skill that nobody can take away from you is the skill of finding the investments that people love to buy. You also need lots of investors and the right investors, not all investors are the same, you will learnt to differentiate and qualify your investors, you can’t work with all the investors that you find because every deal is different and the investor that you need for one deal will be different from the imvestor that you need for other deal.