With Civilization 7's new ability to mix-and-match leaders and civs, and all the bonuses available from civics, wonders, and new features like leader attributes, there is a goofy amount of optimizing you can do. While playing a preview build of the game—which isn't out for a couple more weeks yet—YouTuber Drongo decided to see how far they could push it. It's safe to say that they pushed it to its limit, because the game stopped working.
You can watch Drongo's video above. It's sponsored by 2K for a new channel called One More Turn, so consider the praise for Civ 7 with that context in mind, but the mechanics of the game-breaking optimization are the interesting thing to me. It was clear to me from my own experiences previewing Civ 7 that you can go wild with bonus stacking if you want to, but I'm not really the theorycrafting type—I just want to build cool wonders so I can admire them, not because I have some big plan in mind.