User blog comment:EmperorZelos/Language evolution/@comment-1079052-20100511175046

English is anything but near isolating, it is fusional and stuff words togather.

There is no constant flow but usually languages left alone tend toward complexity (hence often isolated areas got real cactus langauges) the up and down is most likely due to the fact humans interact with eahc other, but its just for general trends rather than a universal one. thanks for the input