[iskander]

>Political borders remain among the most fundamental obstacles to human progress around the world.

citation?

There has been many examples where throwing unrelated groups into the same country can causes serious strife. Why would it be different on a global scale? You still have to allocate resources, provide security, make laws etc...

The author makes this very point further down:

>A more stable and peaceful arrangement for Sudan would be to focus on independence for Darfur and South Sudan sooner rather than later, allowing them to rebuild themselves as smaller states at peace with their neighbors instead of facing Khartoum's persistent and nefarious undermining from within.

So it's not the borders that are an obstacle to 'human progress', it's the arbitrary way in which they were drawn by colonial powers.