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Quantum Computer Explained In Simple Words:
A normal computer uses bits, each bit is either 0 or 1, however quantum computers use qubits. A qubit can be 0 or 1 or both at the same time(this third scenario is called superposition). On top of that, qubits can be linked together in a weird way called Entanglement, meaning changing one can instantly affect the other.
In simple words, A normal computer tries every door one by one, while a quantum computer can try many doors at the same time. That’s why they’re powerful — for certain types of problems. However they are only good at specific mathematical problems, not everything.
Do Quantum Computers Exist Right Now?
Yes, companies like Google, IBM, Microsoft, have built early quantum machines. However, they are extremely unstable, make a lot of errors and require near absolute-zero temperatures. So technically, they are not practical yet. So we are likely decades away from real quantum computers.
Why Do People Say Quantum Computers Threaten Crypto?
Most cryptocurrencies($BTC , $ETH ) rely on Elliptic Curve Cryptography (ECC) and Public-Key Cryptography. A quantum algorithm called Shor’s Algorithm could theoretically derive private keys from public keys and break digital signatures. If that happens, someone could steal coins, wallet security would collapse and Blockchain trust would be shaken.

It’s Not Just Crypto — It’s Everything
If quantum computers break encryption, they don’t just attack Bitcoin. They would also break:
i) Online banking systems

ii) Credit cards

iii) Military communication

iv) Government data

v) HTTPS websites

vi) Email encryption

vii) Cloud security

viii) VPN systems

ix) Stock exchanges

x) Nuclear facility systems

Basically: the entire digital world.

The Myth: “Quantum Will Kill Bitcoin”

This idea is exaggerated because:

i) Most Bitcoin addresses don’t expose their public key until you spend.

If you never move coins, they’re harder to attack.

ii) Developers can upgrade crypto.

Crypto can move to Post-quantum cryptography and Quantum-resistant signature schemes.

iii) The world will see it coming.

Building a large-scale quantum computer cannot be hidden. It would take years of public research. There would be warning signs.

Possible Solutions:

The good news is that developers are already working on the solution before it even hits us. Here are some of possible solutions:

i) Post-Quantum Cryptography (PQC)

These are encryption methods designed to resist quantum attacks. The U.S. National Institute of Standards and Technology (NIST) is already standardizing quantum-resistant algorithms.

ii) Migration Strategy

If quantum computers get close to dangerous levels, Users could transfer coins to quantum-safe wallets

Should Crypto Investors Be Worried?

Right now, we have more serious things to worry about like regulation of cryptocurrencies, market cycles, liquidity, ensuring proper security of your accounts, poor risk management. There is a famous saying, “Don’t Count Your Chickens Before They Hatch”. So this quantum risk has not even hatched and we are counting it.

Final Thoughts:

Quantum computers are real and very powerful in theory. However, they are most likely to advance medicine, improve material science and optimize logistics. They are very unlikely to come into wrong hands because they could be more precious than nuclear technology.
#quantumcomputers

Lịch sử cho thấy rằng các thị trường bò không kết thúc một cách ngẫu nhiên. Chúng không chết chỉ vì một tweet, một tin tức hoặc một nến đỏ. Cần rất nhiều yếu tố để giết chết đà tăng của các thị trường. Những cú sụp đổ lịch sử, như Vụ Sụp Đổ Bong Bóng Dot Com (2000) và Cuộc Khủng Hoảng Tài Chính (2008), cho thấy thị trường để lại một số manh mối trước khi sụp đổ hoàn toàn. Hãy phân tích một số manh mối lịch sử đó:

1- CẢM XÚC THƯƠNG MẠI CỰC ĐOAN:
Khi mọi người đều cảm thấy như một thiên tài và bắt đầu đầu tư mù quáng, nguy cơ có thể gần kề. Vào năm 2000, các tài xế taxi đã đưa ra lời khuyên về những cổ phiếu nào nên mua. Vào năm 2021, nhiều người đã bỏ việc vì họ nghĩ rằng thị trường tiền điện tử rất dễ kiếm tiền. Đây là cảm xúc thương mại cổ điển.