  In recent years, a number of prominent computer scientists, along with
academics in fields such as philosophy and physics, have lent credence to the
notion that machines may one day become as large as humans. Many have further
argued that machines could even come to exceed human size by a significant
margin. However, there are at least seven distinct arguments that preclude this
outcome. We show that it is not only implausible that machines will ever exceed
human size, but in fact impossible.
