Slightly designed more for possibly children with its quirky asides, but still showcases some siege weapons. Some were pretty fairly in the right direction, like portable bridges. Some were just silly, which - no judgment to him, sometimes you just have to design something fun. It’s good sometimes to just draw a multi-cannon for funsies Full respect to his commitment to keep weaponry designs from being used for ill, though the video does make a point that a patron system of submitting weapons to a single rich elite isn’t the most ethical way to go about things nowadays.
But, some of these can be rehashed for fantasy, like water shoes but more magic based instead of inflatable bladders at the feet. Anyone who’s tried to walk in diving flippers can tell you that this isn’t the most stable option. All the same, plenty of these rely on people walking, which likely isn’t the most stable option in war if you’re going to have multiple people reasonably stationary in line for long-distance shots and with limited stamina.
If nothing else, they’re very fun inspirational points for stories.