What positive and negative effect did Alexander the Great have?

Alexander the great had a significant positive effect by spreading Hellenistic culture across the regions he conquered, fostering advancements in art, science, and philosophy that shaped future civilizations. However, his aggressive military campaigns also had negative consequences, leading to widespread destruction, loss of life, and the destabilization of many societies in the territories he conquered. This dual impact contributed to both cultural exchange and societal upheaval in the ancient world.