Archaeologists have determined that twenty people,
using only stone chisels made from hard stones available on the island,
could carve even the largest completed statue within a year.
Given enough timber and fiber for rope,
a few hundred people could load a statue onto wooden sleds,
drag it over lubricated wooden tracks or rollers,
and use logs as levers to stand them up.
Hauling on statue would require hundreds of yards of rope made from plant fibers.
Did Easter at one time have the necessary trees?