Ryan S.
Ryan S.
Security engineer | Blockchain Developer

Blog specialized on Security, Crypto and blockchain.

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2026 © Ryan S.

    Sampling and Standard Error - Estimating a Population Mean from One Random Sample

    Sampling and Standard Error - Estimating a Population Mean from One Random Sample

    How one random sample gives a confidence interval for a population mean, using the standard error σ/√n, the sample SD as a proxy, and MIT 6.0002 code.

    2026, Oct 26   —  26 minute read
    Random Walks in Python - Simulating the Drunkard's Walk and the Square-Root Law

    Random Walks in Python - Simulating the Drunkard's Walk and the Square-Root Law

    MIT 6.0002 Lecture 5 in Python: Location, Field and Drunk classes, a sanity check that caught a bug, and why a random walk drifts √n away on average.

    2026, Oct 26   —  29 minute read
    Monte Carlo Simulation - Roulette, the Law of Large Numbers and the Empirical Rule

    Monte Carlo Simulation - Roulette, the Law of Large Numbers and the Empirical Rule

    Monte Carlo simulation with roulette: exact returns of 0, -1/37 and -2/38, the law of large numbers, and 95 % confidence intervals from the empirical rule.

    2026, Oct 26   —  30 minute read
    Hyperliquid HIPs in Practice - Risks, Failure Scenarios and Market Quality

    Hyperliquid HIPs in Practice - Risks, Failure Scenarios and Market Quality

    What users lose when a HIP-1 to HIP-4 market fails on Hyperliquid, how to judge a market before trading it, and worked examples for each proposal.

    2026, Oct 26   —  26 minute read
    Hyperliquid HIP-1 to HIP-4 in Twelve Cards — The Definitions to Memorise

    Hyperliquid HIP-1 to HIP-4 in Twelve Cards — The Definitions to Memorise

    Twelve flashcards for Hyperliquid HIP-1 to HIP-4: native tokens, Hyperliquidity, builder-deployed perp DEXs, slashing and outcome markets, with a revision table.

    2026, Oct 26   —  11 minute read
    Building on Hyperliquid HIPs - A Developer Reference for Deployment and Integration

    Building on Hyperliquid HIPs - A Developer Reference for Deployment and Integration

    Request payloads, info queries, asset-ID lookups, error cases, testnet steps and checklists for deploying and integrating Hyperliquid HIP-1 to HIP-4.

    2026, Oct 26   —  28 minute read
    Graph-Theoretic Models — Depth-First and Breadth-First Search (MIT 6.0002, Lecture 3)

    Graph-Theoretic Models — Depth-First and Breadth-First Search (MIT 6.0002, Lecture 3)

    Graphs as models, adjacency lists in Python, and why breadth-first search finds the fewest-edge path but not the cheapest weighted one.

    2026, Oct 26   —  33 minute read
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