Is there really a way to determine what all projects/coins will survive? I wish to invest now but I am really skeptical. Does the 'top 5-10' rule always work?Is it advisable to follow this rule blindly?
Top 5 to 10 means that the crypto projects have a strong community and project team behind them and are "generally accepted" by the entire crypto community.
If you are in it for a long haul, DYOR is always a rule to follow and invest/contribute only what you can afford to lose as crypto is a very high risk investment.