What everyone underestimated was the acute unpopularity of the Taliban, even in the Pashtun areas. People like myself were saying the Taliban would be driven out very swiftly from the north of Afghanistan, but given that their main support base was in the Pashtun belt, there would be greater resistance there. That didn't happen. The Taliban had become deeply unpopular and were actually discarded by the Pashtun population almost as quickly as they were in the north. I don't see the Taliban coming back in any way.