Retirement Stress Tester
Model gap years, pensions, Roth conversions, healthcare, taxes, and bad-sequence risk.
Engineering workbench
Interactive Tools
The long-term moat: models people can actually use.
Covered Call Analyzer
Estimate premium yield, dividend impact, assignment risk, and tradeoffs versus buy-and-hold.
Arizona Water Dashboard
Compare water use, GDP, agriculture, housing growth, and infrastructure constraints.
Pension Bridge Planner
Bridge the years before pensions and Social Security begin without lying to yourself.