This piece is an attempt to sharpen my own understanding of Bitcoin by working through a few questions that kept bothering me: where Bitcoin’s value actually comes from, whether it is a waste of energy, whether miner costs set the price floor, the real relationship between miners and the network, and the centralization of mining farms. Some basic Bitcoin knowledge is assumed 👉 the whitepaper: https://bitcoin.org/bitcoin.pdf
The core value of Bitcoin
Humans have an innate need to store and transfer value — that need created money. Centralized money carries risks: reliance on government credit, unbounded issuance. So a demand for decentralized money exists. Bitcoin’s protocol design satisfies that demand, and value follows from there.
Is Bitcoin a waste of energy?
If something could be produced out of thin air, consuming neither labor nor intelligence, I would find it hard to believe it has value. Bitcoin needs hashpower — electricity — to keep the network running securely. Spending energy is not waste; it is the requirement.
Do miner costs set the price floor?
The usual claim: electricity price determines miner cost, therefore the cycle bottom is set by electricity price. This inverts cause and effect. When prices are depressed, high-cost miners switch off, difficulty drops, and low-cost miners become profitable again. Miners migrate toward cheap power and cheap labor.
Price is set by supply and demand, and issuance is fixed. Market demand does not change because a miner powered down. So price does not track cost. Price is rooted in the value of Bitcoin’s protocol design, and moves with sentiment, genuine demand, and adoption.
Miners and the Bitcoin network
I used to think of it as symbiosis: miners joining is what makes decentralization real, and miners leaving puts network security at risk. I now think it is sequential rather than symbiotic. The decentralized protocol design comes first; its reward design makes miner participation inevitable. An analogy: Bitcoin’s value is like a crop. The crop satisfies a human need for food, which makes growing it profitable, which guarantees someone will grow it.
Centralization of mining farms
In theory, centralized farms with enormous hashpower are a genuine threat to Bitcoin’s security. The pursuit of maximum efficiency makes some centralization inevitable. But these farms are, at one level, not centralized at all — because of hardware leasing. Miners lease machines and take the yield; the farm takes a cut. A farm is really a place where many miners mine together; if human intent is the unit of account, these farms are decentralized by intent.
Of course, under today’s hashrate distribution, a few farms colluding could mount a 51% attack. That requires choosing short-term gain over long-term profit and accepting legal risk. The risk is hard to quantify. Belief in Bitcoin’s core value is probably what keeps farms playing the long game.
Closing
Most of these questions collapse back into Bitcoin’s core value: a decentralized money. Simple, and beautiful.
这篇文章是为了加深对比特币的理解，思考了几个让我困扰的问题：比特币的价值在哪，比特币是能源浪费吗，矿工成本决定了价格底部吗，矿工和比特币网络的关系，矿场的中心化问题。 阅读需要先了解基础的比特币知识 👉 白皮书 https://bitcoin.org/files/bitcoin-paper/bitcoin_zh_cn.pdf
比特币的核心价值
人类对于价值储存和转移有天然的需求，这诞生了货币。而中心化的货币，有政府信用和超发等风险。所以产生了对去中心化货币的需求，比特币的协议设计满足了需求，从而产生了价值。
比特币是能源浪费吗
如果一个东西能够凭空产生，而不消耗任何的劳动和智力，我很难相信那是有价值的。比特币需要算力（电）来保证网络的安全运行，消耗能源是一种必须。
矿工成本决定了价格底部吗
因为电价决定了矿工的成本，所以周期底部的价格是由电价决定的。这是因果倒置，如果价格低迷，高成本的矿工会关机，挖矿难度会下降从而让低成本矿工获利。矿工会向低成本电力/人工的地区聚集。
价格由供需决定，产出是一定的。市场需求不会因为矿工关机而变化。所以价格不会因成本而变化，价格立根于比特币的协议设计价值，受市场情绪，真实需求，认可度等多方面因素决定。
矿工和比特币网络的关系
我曾认为它们是共生关系，矿工的加入让网络的去中心化得以成立，矿工离开会导致网络安全的风险。现在我认为是一种先后关系，去中心化的协议设计在先，其中的奖励设计让矿工的加入是一种必然。这里可以把比特币的价值比作农作物，农作物满足人类对于食物的需求，所以种植农作物才有利可图，所以一定会有人去种植。
矿场的中心化问题
理论上，拥有强大算力的中心化矿场对比特币的安全确实造成了威胁。为了极致的效率，中心化必然会出现。但是这些矿场，在某些层面上是非中心化的–矿机的租赁。矿工租赁矿机，获得收益，矿场获得提成。可以说，矿场是由很多矿工共同采矿的地方，如果人的意愿是基本单位的话，这些矿场以人的意愿来算是去中心化的。当然，在今天的算力分布下，几家矿场联合起来是可以进行51%攻击的，需要他们决定牺牲长期利益和面临法律风险来换取短期利益。这个风险很难量化。对于比特币的核心价值的信任或许能让矿场选择长期利益。
结语
以上很多问题最终回归到了比特币的核心价值，一个去中心化的货币。简单而美。