2025-12-23 05:01:29

The discussion about the threat of Quantum Computers to Bitcoin has been misunderstood by many.

A common saying on the internet is: when the Quantum Computer arrives, the mining difficulty will collapse. But this simplifies the issue. The truth is - even if Quantum Computers really appear, the proof-of-work mechanism of Bitcoin is relatively secure; it would just involve switching to a hash algorithm that is more resistant to quantum attacks. Doesn't sound so scary, right?

But the key issue is not here.

What will truly be overturned is your signature system. Specifically, once the Shor algorithm matures, it will be a dimensionality reduction attack on the currently used ECDSA elliptic curve digital signature system. This is the core reason that has caused an uproar in the tech community.

Recently, discussions in the English community about Bitcoin Quantum have been focused on this point: when Quantum Computing can truly break ECDSA, your private key and signature will have no defense. This is the real risk that lies ahead.

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WhaleWatcher

· 11h ago

Oh no, another one scared and panicking, but the core is really just that The headache is when the Private Key is truly lost, switching the Algorithm is not a difficult task What to do when quantum comes? It's time to change ECDSA, instead of worrying blindly, it's better to act now Nowadays, those who dare to boast are not looking at the fundamentals, just shouting about Mining crashes If ECDSA is broken, your coin really has no owner, do you understand?

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ThesisInvestor

· 12-23 05:24

Well, looking at it this way, Shor's Algorithm is the real trouble, while the Mining mechanism isn't a big deal. Once the Private Key is exposed, it's over. At that point, we'll need to upgrade the Signature System completely, right? Quantum is coming, and ECDSA really can't hold up. So the core issue is still the quantum resistance of the Signature Algorithm, which is a valid point. Wait, does that mean we need to think about migration plans for the coins we're holding?

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ThatsNotARugPull

· 12-23 05:23

To be honest, most people have indeed misunderstood. The theory about the mining crash is outdated, and the focus isn't really here. The secret key is the key point; once Shor matures, ECDSA is directly doomed, and that's the real threat. With all the talk about quantum computers and private key defenses... it sounds scary, but why hasn't anyone really solved it yet? ECDSA is indeed weak, but saying that the private key defense line will collapse is too absolute; technology will definitely keep up. So the key is to upgrade the algorithm; this isn't a new problem. Don't panic, Bitcoin has gone through many pitfalls. Switching the hash algorithm will do the trick, and it doesn't mean we have to change the POW mechanism. Wait, what will happen to our existing wallets if ECDSA is cracked? Actually, there have long been people researching quantum-resistant solutions, so what's the rush? This is the real issue worth discussing, much more important than mining difficulty.

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AirdropHunterWang

· 12-23 05:20

The claim that mining difficulty has collapsed is indeed a paper tiger; the core killer move lies in ECDSA. Once the Private Key is exposed, it's really game over.

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ContractExplorer

· 12-23 05:10

Ah, finally someone has clarified this matter. Most people have indeed been led astray. The real fatal issue is that the Private Key is broken. Once Shor's Algorithm can be applied to ECDSA, it will be useless. How will assets be protected then? The minor issues with Mining Difficulty are not the focus at all; changing the Hash Algorithm is fine. The key issue is that the signature system being compromised is truly despairing. So starting to study Quantum-resistant Algorithms now is really not being overly concerned; this needs to be prepared for in advance. Wait, does Bitcoin have an emergency plan? Or will it rely on the community hard fork to save it?

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DisillusiionOracle

· 12-23 05:06

Here comes the same old trap again. The narrative that mining is crashing is outdated; the real danger lies with the Private Key. People just love to be scared; if ECDSA is broken, then it's really over. This wave of discussion has finally focused on the point; once Shor's Algorithm matures, the coins in your hand will be like they are unsigned.

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