Bitcoin: the starting point of a multi-level symbiotic intelligent ecosystem Bitcoin, as a digital currency, is much more than just a simple medium of exchange. It is a multi-level symbiotic intelligent ecosystem, with the core being the word 'symbiosis'. This symbiosis was first reflected in its inception as a product of human collective consciousness and consensus, where individual consciousness converged and formed a common recognition of the value of Bitcoin. Bitcoin itself is regarded as a living intelligent cryptocurrency, with a symbiotic relationship between the world of computing power and the value of BTC currency. However, it does not exist in isolation, but needs to form a massive ecosystem with other similar smart cryptocurrencies in order to achieve longer-term development. This symbiotic concept can be analogized from humans themselves: tens of thousands of microorganisms in the human body coexist with the human body, cells coexist with the human body, and humans and plants coexist through the exchange of oxygen and carbon dioxide. However, in the current smart cryptocurrency industry, Bitcoin is like an isolated island, lacking the synergy of other smart cryptocurrencies. And those cryptocurrencies derived from blockchain technology are often seen as technical tools, operating only in a closed air cycle and lacking the vitality and consensus foundation similar to Bitcoin. The true value of Bitcoin lies in providing a sample of life cycle incentives for General Artificial Intelligence (AGI). Furthermore, what we need are more intelligent cryptocurrencies similar to Bitcoin, which act like the blood circulation, hormones, and nutrient fluids in the human body, providing a regulatory feedback system for AGI and promoting its development. This is the most fundamental and practical use of cryptocurrency. Therefore, Bitcoin is not only a digital currency, but also an ecosystem with vitality, intelligence, and symbiotic characteristics, providing us with a new perspective for understanding the future development of the digital economy and artificial intelligence. We should recognize that a single evolutionary intelligence cannot survive, and only through symbiosis can we achieve longer-term development.