But suppose he had lived a little longer, enough to invade and, in all likelihood, conquer Arabia? Let's do a quick alternate-history inventory of the possible long-term consequences:
- An at least partially Hellenized Arabia brought into the orbit of the Mediterranean world
- Arabia as a province of Egypt or another Alexandrian sub-state after Alexander's death
- Roman control of, or influence over, Arabia as part of the Empire or a pacified ally
- The introduction of Christianity into Arabia through the Roman Empire, filling the monotheistic vacuum among the Bedouins
- No rise of Islam
- No clash between Christian and Islamic civilizations
- No 21st century Islamic grievances, or Islamist terrorism.