Sources, updates & estimates

What changes live?

Coinbase supplies trade updates. Market quotes and sports scores are checked regularly and may be delayed. Weather is model output. World Bank and Our World in Data indicators are published annual observations.

How is population now calculated?

Stats&Market extends the difference between the latest two annual population observations at a constant linear rate, anchored on July 1 of the latest observation year. Birth and death counters use published crude rates and elapsed UTC-day time. Country estimates use national source inputs, including negative growth where reported. These models are not official forecasts or observed events.

When will oil run out?

A reserve-to-extraction ratio holds known reserves fixed and compares them with annual extraction. It is a scenario, not a depletion date. Discoveries, revisions, recycling, economics, technology and changing demand all matter. Crude-oil production and total oil-product demand cover different quantities.

How are news summaries produced?

Briefings use attributed publisher feed excerpts. Search ranks connected reports and displays source dates. Wikipedia reference extracts are separate from current reporting. Missing or conflicting evidence does not become a generated claim.

Nature monitoring

USGS earthquake observations, GDACS classifications and NASA EONET volcanic event catalogues have different coverage and ages. An open event is not necessarily a current eruption. Neither a green classification nor absence from a feed establishes safety.

Update integrity

Shared caching, request coalescing and failure backoff protect providers. Every observation retains its source time; cached responses are labeled. Live source status is available in the dashboard.