You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
What if western Afghanistan including Hazarajat and western Balochistan remained iranian after the Safavids and the rest of Afghanistan was annexed by the Mughals, and eventually become part of the Raj of India. If you want also divide the turkmen, uzbek and tajik north of Afghanistan among the turkic khanates. I think this could become a durable border. Eastern Afghanistan could become shia majority or Hazarajat may became a Bosnia shia equivalent. Not shure what is gonna be of the pashtun on the south.