What this is

AssetArchitect takes a list of things you own and asks a single question: if the worst economic event in a given decade happened again tomorrow, what would this basket be worth on the other side?

It is deliberately not a returns calculator. It reports the floor, not the ceiling, because the floor is the number that determines whether you are still standing.

How the numbers are produced

Each holding is tagged with the properties that actually mattered in past crises: whether it is tangible, whether it is a claim on someone else, whether it is monetary or industrial, whether it is held outside a custodian. Each scenario is a set of rules written against those properties and sourced to what happened at the time.

Every result exposes the rule that moved it, under "Why this number." If a figure looks wrong to you, you can see the reasoning and disagree with it specifically rather than in general.

Confidence, stated plainly

Historical scenarios are graded higher than hypothetical ones, and the hypotheticals carry a visible confidence rating on every run. A scenario that has not happened is labelled as one.

Who built it

One person, working nights. Background in explosive ordnance disposal, then manufacturing and controls engineering, a career spent on failure modes and what happens when a system stops behaving. This is the same question pointed at a balance sheet.