When Bitcoin reaches 200,000–300,000 USD per coin, its total market value can be as high as 4–6 trillion USD, but the total hardware value of Bitcoin mining machines worldwide is only about 8 billion USD.



Core question:
Using only 8 billion USD in mining-rig hardware to support a Bitcoin market value of 4–6 trillion USD—does the security foundation feel too thin?

- Attack costs are seriously mismatched with market value: theoretically, tens of billions of dollars could be enough to launch a 51% attack, while the market value is several hundred times that.

- The security budget is too low: Bitcoin’s annual security budget (block rewards + transaction fees) is a very small share compared with its trillion-level market value.

- Potential risks: once attack costs are judged to be “worth it” (for example, if profits can be made through short selling and double-spending), the network’s security could face systemic challenges.
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