Good investors are obviously those people who knows on what they are investing in. They have researched the company or the project for months or even observed it for a year. It is very simple as that because if you have not have done any of those things and you were just attracted by all the hype then that you are a bad investor.
Exactly, good investors always know what they are doing, they use their brains to achieve success, they do not participate in a battle they do not know anything about it, and above all, they are the ones who know how to accept failure and realize the mistakes from failure, this is something that ordinary investors can hardly do. And another factor that I think is that their patience is always very high, they may accept to miss some opportunities but they accept to let themselves fall into danger