Lilia Shevtsova, of the Carnegie Moscow Centre, speculates that an unbridgeable split within the elite might yet allow a flamboyant authoritarian challenger to emerge.
There can be a vast and often unbridgeable difference between the qualities of a successful CEO and those of an equally successful chief operating officer.
Yet the strikes do not reflect an unbridgeable divide between capital and labour: rather, nearly all South Koreans are capitalists, and many of the strikers had voted for Mr Lee.
It's fine for a country or a region to have ethnic and cultural diversity, I think its the beauty of south Asia that we have such diversity but I think the ethnic, religious and cultural differences between north and south Sudan are unbridgeable.