Data science, product analytics, growth insights and decision intelligence for product-led teams.

How subscription metrics - ARR, ARPPU, retention, LTV, CAC, and unit economics - connect into one system, with formulas, worked examples, and the decisions each metric informs.

A practitioner's guide to the 10 machine learning algorithms that handle the majority of real-world tabular, text, and classification problems, with decision criteria and production tradeoffs.

Data-backed analysis of startup success and failure: modern risk frameworks, market validation, the first-mover myth, Lean Startup evolution, and how AI changed the math.

A project using APIs, spreadsheet transformation, and Tableau to turn personal trip data into an ongoing dashboard.

A continuation of the underwater monitoring research, focused on distributed sensing, mobile underwater vehicles, and protocol choices suited to constrained environments.

A research-oriented project about underwater sensing, acoustic communication constraints, and a protocol stack tailored to river monitoring.