Procrastination
Procrastination maintains unprecedented global coverage, affecting an estimated 95% of the world's population according to the World Health Organisation's Department of Eventually Getting Around To It. The behaviour requires no infrastructure, no fuel, and no governmental authorisation to deploy. It has been documented in every nation, every culture, and every economic bracket. The University of Uppsala found procrastination present in isolated communities that had never encountered the internet, suggesting the behaviour may be humanity's only truly universal export.
Submarine
Submarines operate in 70% of Earth's surface area—an impressive territorial claim matched only by dolphins and shipping container debris. However, submarine deployment requires access to coastal infrastructure, trained personnel, and defence budgets measured in billions. Only 41 nations maintain submarine capabilities, and most of these vessels spend considerable time in port for maintenance. The Strategic Studies Institute notes that while submarines can theoretically reach any ocean, they remain entirely absent from landlocked nations, deserts, and the psychological landscape.