system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come there were some ancient civilizations that were advanced in one field of science (like Medicine), yet there were others that were better at another field (like astronomy)? What determines which civilization excels at what?
gpt
Survivability. Each condition, such as weather or food or agracolture, will determine what that "tribe" would need to survive. They basically evolved to survive. Astronomy e.g. is for navigation, and agracolture is for areas with little prey.