What are altcoins and competitive coins? Are they worth investing in?

The Bitcoin source code is public. By making some modifications to the Bitcoin source code, you can create a digital currency similar to Bitcoin. This is an altcoin. If innovative technical improvements are made, it can be called a secondary token or competitive coin. People usually habitually call them altcoins. Most altcoins and competitive coins gradually die out due to the author's weak technical strength, no advantages, long-term lack of maintenance, lack of promotion, lack of team formation, etc., and have no investment value. Only those excellent coins developed by teams with strong technical strength and innovation ability have investment value. If you invest in excellent coins correctly, the returns will be very generous. There are still many wealth opportunities in this industry