The essence of Sun Ge's industry doom is his cunning and stingy nature.
Because of his cunning nature, Sun Ge has to capitalize on every new market trend, so he can be seen in every new hot topic.
Because of his stinginess, Sun Ge can't hire top talent, and has to cobble together a makeshift team.
This results in Sun Ge always being one step behind others. At the end of the race, Sun Ge's makeshift team can only produce a half-baked product.
By this time, the hot topic has already come to an end.