When a core industry declines, those with more capital and stronger capabilities will spill over into other sectors, quickly increasing competition and causing previously profitable industries to be "squeezed flat," making short-term profit opportunities fewer and fewer; in this cycle, the opportunities that everyone can see and quickly cash out tend to disappear faster, and the truly effective approach is to avoid short-term games, dedicating time to building hard-to-duplicate long-term capabilities and resources (such as technology, brand, user mindshare), and completing accumulation during low-cost phases, so that when the cycle recovers, advantages can be amplified, thereby establishing a position in niche markets.