According to @1HowardWu on X (Nov 1, 2025), crypto privacy spans four levels: Level 0 transparency on BTC, ETH, and most L1/L2 chains where sender, receiver, and amount are permanently public; Level 1 obfuscation via mixers, tumblers, and stealth addresses that hinder but do not prevent tracing due to correlation and timing analysis; Level 2 institutional privacy where operators and regulators retain full visibility while the public does not; and Level 3 full cryptographic privacy where transaction data is hidden from everyone, including validators, with examples including some ZK-rollups, fully shielded Zcash transactions, and FHE-based systems. According to @1HowardWu on X (Nov 1, 2025), each level trades off usability, compliance, and security, giving traders a taxonomy to classify assets and infrastructure by privacy guarantees. According to the U.S. Department of the Treasury (Aug 8, 2022), OFAC sanctioned Tornado Cash, illustrating elevated enforcement risk for Level 1 obfuscation tools; and according to the U.S. Department of Justice (Apr 24, 2024), the Samourai Wallet founders were charged, reinforcing that obfuscation-focused services face regulatory scrutiny. According to @1HowardWu on X (Nov 1, 2025), Level 3 assets such as fully shielded ZEC transactions and some ETH ZK-rollups provide stronger on-chain privacy than Level 2 models, which implies different compliance trade-offs that traders should distinguish when evaluating sector exposure and event risk calendars.

According to @VitalikButerin, ZK and FHE teams should report performance as an overhead ratio—cryptographic compute time divided by raw compute time—rather than N ops/sec, enabling more hardware-independent comparisons and straightforward estimation by multiplying known raw runtimes, source: @VitalikButerin, Oct 18, 2025. He acknowledges ratios remain somewhat hardware-dependent due to heterogeneous operations, SIMD/parallelization, and memory access patterns, but argues the overhead factor is still the most informative single number for developers, source: @VitalikButerin, Oct 18, 2025. For trading due diligence on ETH rollups and privacy protocols, lower overhead ratios imply less efficiency loss versus raw compute, clarifying prover requirements and throughput planning once projects disclose these figures, supporting more comparable cross-project benchmarking, source: @VitalikButerin, Oct 18, 2025.

According to @CryptoCoinCoach, FHE is breaking out from a falling wedge, a bullish reversal structure that signals a potential trend shift, source: @CryptoCoinCoach on X, Oct 8, 2025. The price is around $0.0499 after recovering from the lower wedge support near $0.047, source: @CryptoCoinCoach on X, Oct 8, 2025.