Kotaku has made a video about our most beloved genre: The 4X games. In this video, they go quickly back to the beginning of 4X with Master Of Orion 1, and then describe a bit the features which all these games have. The video is not very in-depth, but if you need to convince someone else why these games rule (I mean… we all know that), then this video is worth a watch.
Watch the video here: https://kotaku.com/whats-a-4x-game-and-why-do-they-rule-1847817394