At this stage the cells start to bind firmly together in a process called compaction, and cleavage continues as cellular differentiation begins.

Although the presence of granules in the solar photosphere is a well documented phenomenon, there is still much debate on the true nature or even the existence of higher order granulation patterns.

But from a certain degree both of the compaction of international (economic) relations and of the development of military technology war discards more and more as a method of conflict.