"The location of three equilateral points is quite unique, and there are no other points on the Earth's surface that could conceivably replace any one of those," says Lukatela. It is possible that better measurements, or coastal erosion, would shift the location of Point Nemo, "but only in the order of metres".
Point Nemo is so far from land, the nearest humans are often astronauts. The International Space Station orbits the Earth at a maximum of 258 miles (416km). Meanwhile the nearest inhabited landmass to Point Nemo is over 1,670 miles (2,700km) away.
The area is officially known to space agencies as the "South Pacific Ocean Uninhabited Area". In particular, the Russian, European and Japanese space agencies have long used it as a dumping ground, because it is the point on the planet with the fewest human inhabitants and the quietest shipping routes.