Recently, @ adam3us, a BTC veteran OG and inventor of Hashcash (used for Bitcoin mining), posted a tweet about the latest plan to upgrade BTC's quantum resistance. Let me briefly summarize: 🙋 Potential crisis in BTC: Quantum computing is not a joke, signature mechanism may be compromised Once quantum computers are implemented, the current signature algorithms for Bitcoin (ECDSA, Schnorr) may become insecure. The underlying concern behind this statement is: If quantum computing can efficiently run the Shor algorithm, it can solve for private keys. The security of Bitcoin today largely relies on ECDSA and Schnorr's asymmetric encryption algorithm (relying on mathematical problems on elliptic curves) But these mathematical problems are not "difficult" in the quantum world, but "simply unbearable". This is what is known as "PQ FUD" (Post Quantum Fear, Uncertainty, Doubt), and it is also a part of the long-term trust risks in BTC in the market. 🛡️ Solution: SLH-DSA+Taproot injects future quantum resistance into BTC SLH-DSA "is an anti quantum signature mechanism based on" hash "rather than mathematical structure, which can be smoothly compatible with BTC when combined with Taproot. SLH-DSA (NIST FIPS 205) is currently one of the most advanced anti quantum signature algorithms. It is based on SPHINCS+, which in turn is based on Winternitz and Lamport hash signatures - with a long history, validated, and solid theoretical foundation. Taproot is a major upgrade for BTC in 2021, allowing complex scripts to be hidden behind a regular address. Its design has long considered future pluggable anti quantum solutions (such as Tapleaf supporting SLH-DSA). Adam's suggestion is: You can migrate to a new address format (including SLH-DSA tapleaf) at some point in the future, without having to bear the block space and transaction costs associated with large signatures. If quantum threats become real in the future, you can prepare in advance and avoid being passively attacked. Simply put, it's like installing an air raid shelter at home in advance, which you don't usually use, but you don't panic when missiles come. 📝 Technical details highlight: Quantum resistance relies on "old methods"+"new structures" SLH-DSA is based on a hash structure, which was proposed by cryptographers decades ago. It does not rely on strange new algorithms, but rather on a verifiable and inferential security structure, unlike some NIST candidate schemes that use "unfamiliar mathematical assumptions". The current address structure of BTC (taproot/tapleaf) itself reserves space for future expansion, and even TWEAK's method originally considered quantum security. 📈 Investment perspective: risk hedging+new narrative opportunities one ️⃣ Hedge of BTC Long Term Trust: If the BTC community clearly launches an upgrade roadmap for anti quantum solutions (such as SLH-DSA compatible address standards), it can greatly dispel doubts about BTC being instantly killed by quantum computing power in the future; Beneficial for hedging long-term systemic risks and maintaining BTC's gold narrative. two ️⃣ New address format/new wallet infrastructure investment opportunities: If the new address format goes online, it will drive: Wallet support (Ledger, Trezor) • Node software, browser (Blockstream, Electrum) • Probe services (Mempool, Explorer) and other supporting upgrades Equivalent to a micro "infrastructure bull market" opportunity. three ️⃣ Long term narrative asset layout: Be optimistic about underlying chain or sidechain projects that support PQ signatures (SLH-DSA, SPHINCS+); If PQ support is integrated in advance in the BTC-L2 project, it will also seize the narrative advantage and ambush some of these types of BTC L2 in advance.