Many people in this world are always questioning this, what is a good business? Well, good business is a business that begins, rather than being questioned because the hard thing in doing business is to walk to the first ladder. If we do not start a single step, we will never get to the top. Just as with trading, or investing in cryptocurrency, without trying and starting investing in it, you will not know how much profit you get, and how much experience you will receive if the market is down. Remember that experience is the best teacher.
The most important thing is to constantly improve their knowledge. That is, it is necessary to increase the competence in order to make less mistakes. Regarding what kind of business you can call good, I want to recommend reading Jim Collinss book "Good to Great".