Even intentional design has an element of surprise and serendipity. Solutions and forms emerge in unexpected ways.
My new insights about borders come along while drawing. That is whole purpose of making the drawings.
And it happens that although I promote design (back to the essence of things and conscious and meaningful choices that allow for innovation), actual borders of organisation do also emerge. The experience can only be scripted and directed to the extent of clever thinking and great building blocks. The rest emerges in the experience of the individual and the collective.