Parse notes
Bitcoin has rebounded to around $87.5K after dipping near $81K, with analysts calling it a “post-flush bounce” rather than a full recovery. Market structure is fragile. BTC is expected to chop in a tight $85K–$90K range while long-term holders quietly accumulate.
Bitcoin tracked its fourth consecutive weekly loss, marking the longest downtrend since June 2024. Q4 2025 looked like its worst quarterly performance since 2018 at -24% despite bouncing 6% from the November 21 low of $82,100 to $87,400. The aggregate spot bid-ask delta at 10% depth spiked to 2025's second-highest level, indicating dip-buying activity, while Federal Reserve rate cut odds surged from 40% to 70% last week. There is a potential bull trap with options traders loading puts in the $80,000-$85,000 range, meaning Bitcoin could briefly slip to mid-to-high $70,000s before recovering to $90,000 by year-end if the Fed avoids hawkish tone. Recovery to $100,000 is expected by Q1 2026.
zkSync's Airbender prover achieved real-time Ethereum L1 block proof generation using just two consumer-grade RTX 5090 GPUs, prompting Ethereum Foundation researcher Justin Drake to suggest the breakthrough could enable "gigagas L1" with significantly higher gas limits pushing L2 fees toward zero. Vitalik Buterin praised the "huge milestone" but cautioned about worst-case performance gaps where proving times can differ by 60x between average and worst-case blocks, recommending repricing gas for expensive operations like RSA verification rather than hardware arms races. The achievement was showcased at Ethproofs Day in Buenos Aires and marks a shift in Ethereum's scaling trajectory as consumer-grade proving becomes feasible compared to historical data center resource requirements.
Leverage in prediction markets faces fundamental challenges because instant price jumps to zero eliminate liquidation windows, requiring financiers to price expected losses upfront, but naive probability-based fees merely create accounting tricks where levered ROI equals unleveraged positions. The solution splits price movements into "creep" (continuous drift allowing liquidation) versus "jumps" (instant gaps with no reaction time) and prices risk over short epochs with rolling per-epoch fees similar to perps funding rather than pricing entire position lifespans. This epoch-based approach treats drift, volatility, and jump rates as frozen constants within small time windows, computing liquidation probabilities and average losses separately for creep versus jumps, while limiting misspecification risk that could wildly over- or underestimate fees as market conditions shift near resolution dates. The architecture includes block-level auction designs capturing news-driven arbitrage to rebate market makers and financiers, further reducing effective jump losses and fees charged to traders.
You can often get better risk/reward on Polymarket by trading relationships between markets instead of single yes/no outcomes. Three ways to do this include time spreads on the same event, “either-extreme-wins” baskets, and logical/arbitrage-style bets across correlated AI markets.
83-95% of liquidity in major DeFi pools, including Uniswap and Curve, sits idle, with only 0.5% of Uniswap v2's liquidity falling within active trading ranges, leaving nearly $1.8 billion ineffective. Retail liquidity providers bear the brunt as 50% lose money from impermanent loss with net deficits exceeding $60 million, including one Uniswap v3 pool losing over $30 million to Just-in-Time manipulation. 1inch's Aqua protocol could be a solution as it allows DeFi applications to share a common capital base across strategies while users keep assets in wallets and create "virtual trading positions," with any existing DEX implementable under 10 lines of code. The liquidity crisis stems from over 7 million fragmented pools across the ecosystem diluting capital and reducing routing efficiency for trades.
Big brokerages in the US are starting to treat prediction markets as commoditized backends. Kalshi is already rebating up to half its fees to Webull for order flow, while Robinhood is signaling it will route prediction orders across multiple venues and eventually squeeze fees or build its own markets.
Offchain Labs challenged Vitalik Buterin's proposal to transition Ethereum's execution layer to RISC-V, arguing WebAssembly offers superior long-term advantages by distinguishing between "delivery ISA" for uploading contracts versus "proving ISA" for ZK virtual machines. Arbitrum already proves WASM-based Stylus smart contracts by compiling WASM to RISC-V first, and enshrining RISC-V on L1 could lock Ethereum into proving technology just as better alternatives emerge. WASM's structured design, efficient execution on common hardware without emulation, validation capabilities preventing vulnerabilities, and mature tooling ecosystem position it as an "Internet Protocol for smart contracts" as ZK proving costs have plummeted to $0.025 per block.
Ethereum's data chart shows L1 blobs still dominate rollup data (≈67%), with EigenDA already at ~19% and Celestia the rest.
Crypto feels like it's hanging by a thread as BTC has dropped from ~126K to ~85K in weeks, wiping out around $1T in market cap.
GnosisDAO has voted overwhelmingly to end Karpatkey's mandate to manage its ~$300M non-GNO treasury.
Strike CEO Jack Mallers says JPMorgan Chase abruptly closed his personal bank accounts.