"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
As I travel around Idaho and visit with seniors, I hear almost universal concern about the rising cost of health care, particularly the cost of prescription drugs.
But I think talent as a writer is hard-wired in, it's all there, at least the basic elements of it. You can't change it any more than you can choose whether to be right handed or left handed.