Ballpark — October 6, 2026
Answers to that day's 5 daily estimation questions.
Average life of a smartphone (before upgrade)
3 years
Users are holding onto phones slightly longer now.
Average speed of an Olympic sprinter (Usain Bolt)
27 mph
Peak speed during a 100m dash.
Miles across the continental US (east-west)
2,800 miles
From NYC to LA.
Percentage of Earth covered by water
71%
Includes oceans, lakes, and rivers.
Ants on Earth (estimated)
20 quadrillions
Total biomass is greater than all wild birds and mammals.