6️⃣, big news has just arrived

Google has directly raised the alarm on quantum computing.
It's not a negative sentiment, but rather turning something that once seemed far off into a stark reality.
This latest paper from Google isn't just discussing "possibilities," but presenting a direct pathway: quantum computers cracking Bitcoin, achievable by 2029, not 2035.
Previously, industry consensus was that even if quantum computers arrived, cracking would take months.
But Google's new model cuts the required computing power by 90%.
Now, only 1200 logical qubits are needed to break it.
Let me translate what this means:
The top 1,000 richest Ethereum wallets could be looted within 9 days. The time to crack a private key could be reduced to 9 minutes.
And Bitcoin's block time is 10 minutes—what does this 1-minute difference mean? Your transaction is still waiting in the mempool, while they’ve already reverse-engineered the private key and intercepted it halfway.
Moreover, the risk isn't evenly distributed. As soon as your public key is exposed, you become a prime target. Those long-unused old addresses and ancient miner addresses are actually the most dangerous—millions of "sleeping Bitcoin" on the chain are like targets painted on their faces.
Another detail I pay special attention to: Google didn't publish attack code this time, only zero-knowledge proofs.
This move is highly unusual, essentially implying a presumption—that the capability has already been proven, just not widely disseminated yet.
So, the real concern isn't whether "quantum computers exist now," but that the time window has already been locked in.
By 2029, roughly the middle to late part of the next cycle. That means the industry only has a few years left to upgrade its underlying cryptography.
Bitcoin's ultra-conservative upgrade system will face immense pressure; Ethereum is already pushing transition plans, essentially racing against time.
Many will initially see this as negative news.
But I think this is more like a "certain variable" finally coming into focus:
Post-quantum resistance is shifting from a fringe narrative to a core one—and it's a must-accept reality.
Recently, big whales have started selling their coins—what does this trend indicate?
#BTC #Bitcoin #btc #ETH #eth #Google