Will Bitcoin be cracked by quantum computers in 2035, causing its price to drop to zero? Hold on, everyone, don’t panic just yet. Let me clarify this for you. Recently, a 'civilian scientist' posted online, claiming that the underlying elliptic curve digital signature algorithm (ECDSA, using the secp256k1 curve) of Bitcoin will be broken by quantum computing by 2035, rendering the currency worthless. This sounds alarming, but we need to look at the actual situation. To crack ECDSA with quantum computing, it relies on Shor's algorithm, which requires a huge number of stable 'logical qubits' to perform massive computations. But where are we now? The best quantum computers only have dozens to hundreds of 'physical qubits', while research estimates that breaking ECDSA would require at least 2300 to 2600 logical qubits, which translates to potentially millions or even billions of physical qubits, along with a complex error correction system. If one wants to complete the attack within the 10-minute confirmation period of a Bitcoin block, or even within 1 hour, it is estimated that hundreds of millions of physical qubits and extremely high computational efficiency would be needed. Academic reports have also stated that the basic steps of quantum computing, such as addition and modular multiplication, simply cannot keep up with practical demands. Before 2035, quantum computing must evolve from laboratory toys to this science fiction level, facing enormous engineering challenges, material limitations, energy consumption issues, and error correction technologies, all of which are significant hurdles. Moreover, even if quantum computing makes rapid advances, Bitcoin is not sitting idle. The community has been researching quantum-resistant algorithms, such as hash-based Lamport signatures or lattice-based schemes, and can also reduce risks through soft fork upgrade protocols by using Schnorr signatures and aggregation techniques. The key point is that Bitcoin addresses store hashed public keys (double SHA256 + RIPEMD160), and unspent coins (UTXO) do not expose the public key at all; it only becomes visible during transactions, making the attack window extremely small. The community has plenty of time to respond and upgrade. This notion of 'zero value by 2035' is mostly just fear-mongering marketing (FUD). Folks, the truly smart approach is to pay attention to the real progress of quantum computing, Bitcoin Improvement Proposals (BIPs), and wallet updates, rather than being led by rumors. Don’t let panic cost you your intelligence tax; share this with your friends who are still worried, and don’t forget to follow me so you don’t get lost. Let’s make big profits in the bull market! #内容挖矿