Coined by noted technology guru George Gilder, the telecosm is a world with an abundance of bandwidth. Gilder compares the earlier "microcosm" to the "telecosm," the former being a world with an abundance of transistors and a scarcity of bandwidth. The telecosm is the opposite: abundant bandwidth and a scarcity of transistors. The transistor scarcity is due to the ever-decreasing size of handheld devices.