There comes a point the life of any given fan where they are so fascinated by all the Cool Things they like, that they just really want to show it all to other people. They’re practically bursting at the opportunity, the chance, the potential to explode in the raw ecstasy of talking up said Cool Things to anyone within earshot. There’s a certain childlike wonder and glee to that, so while it can certainly be handled poorly by many in less than socially acceptable ways, it’s a powerful sensation to both feel and behold.
Daicon Film, an amateur film club who came together to work on the opening ceremony video for the 1981 Nihon SF Taikai convention, clearly had such sentiments in their hearts when assembling a means of kicking off a science fiction event. To concoct an embodiment of the concept of Cool Things. In many respects, the eventual two opening animations they would go on to create are arguably among the most anime of anime to ever anime.