Can different forms of suffering be compared with one unit?

USU Research is the experimental part of WSI. It develops and tests Universal Suffering Units, mapping standards, time models, and related measurement ideas while keeping the original public data visible.

No. USU does not currently weight, order, or break ties in WSI data pages. The four pilots use different time bases and are not one league table.

The pilots show both the promise and failure modes of a common unit. Assumptions, ranges, maturity labels, and technical files make the limitations inspectable.

A USU expresses modeled intensity-time burden relative to a specified six-hour kidney-stone pain trajectory. The reference makes the scale concrete. It does not by itself prove that different harms are fully comparable.

No. The reference defines the reporting scale. Whether pain, hunger, fear, illness, and other experiences can be compared on that scale remains a research question.

No. Dengue reports cumulative burden across reported 2025 episodes. Acute food insecurity and child wasting report one-day equivalent burden rates. FIES reports a retrospective annualized scenario per 100,000 people. The results form a research portfolio, not a cross-domain ranking.

It is the span between the approved low and high mapping scenarios. It shows how the result changes when provisional intensity or duration assumptions change. It is not a statistical confidence interval.

P1 is an early illustrative intensity mapping. P2 is informed by relevant empirical or clinical evidence. D1 means the duration values are illustrative scenarios rather than source-measured durations.

No. The current pilot standard covers experienced suffering during lived time. Deaths are reported separately when the source provides a comparable mortality measure.

The source data, state mappings, time basis, and comparison rules would need stronger validation. Results would also need to remain stable under reasonable alternatives and show value beyond simpler indicators.

Renal colic is intense, time-bounded, commonly assessed on clinical pain scales, and supported by published clinical data. It is a calibration convention, not a claim that kidney-stone pain is the most important form of suffering.

Serious negative experience can also involve breathlessness, nausea, fatigue, hunger, panic, fear, grief, or disruption of basic living conditions. Each non-pain state still needs a clear definition and evidence basis.

Case counts show how many people or episodes were reported, but not how intense or prolonged the experience may have been. Death counts remain essential and are separate. DALYs and QALYs are established measures with different purposes.

A focused series can keep the source, definitions, period, and model consistent. Many focused series can build a broader library without forcing them prematurely into one total score.

Total burden reflects the aggregate modeled burden in the included population. A per-capita value reflects concentration relative to a stated denominator. The two views can produce different orderings.

Each modeled state receives low, central, and high assumptions documented in a mapping note. Duration comes from the source or supporting evidence when possible; snapshot and annualized models use clearly labeled time assumptions.

WSI primarily uses official public-health, humanitarian, demographic, and research sources. Each series identifies its source, reporting period, scope, and release version.

Absence does not mean absence of suffering. A country may fall outside source coverage, use an incompatible definition, have a different reporting period, or lack enough data.

The current pilot standard uses approved low, central, and high mapping scenarios. The deterministic range shows model sensitivity under those assumptions; full reports also describe source limits that the range does not capture.

Psychological suffering can be modeled only when the state is clearly defined and supported by credible evidence. The FIES pilot includes food-access worry and distress but does not provide a general psychological-suffering scale.

The current pilot standard does not apply an overlap adjustment. Categories within one model must be mutually exclusive. Separate series are not added into one country total when people and time periods may overlap.

Source counts come from the source organization; the USU mapping adds judgment about intensity and sometimes duration. WSI makes those choices visible through scenarios, maturity labels, and technical notes.

USU estimates modeled experienced suffering associated with the states included in a specific series. It does not measure a person’s worth, dignity, rights, productivity, or overall value of life.

The structure may be relevant to animal-welfare research, but the present program is human-centered. A non-human application would need species-specific evidence, expertise, and separate validation.