system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why parts of the borders between the countries in African continents are just straight lines while it is not the case in other continents?
gpt
Many of these countries were created fairly recently by colonial powers who did not care much about local traditions. They just drew the borders where it was easy for them.

In older countries, the borders are usually set by centuries of cultural tradition and geographic features.

You see the same thing in North America (USA and Canada): the borders of the western states and provinces are straight lines drawn by distant bureaucrats.