I am obsessed with Retrofuturism, with Retrofuturism being my favorite aesthetic and me being more interested in Retrofuturism than Futurism.
Retrofuturism is basically either what people of the past thought that the future would look like has now been outdated (especially because of technological advances) or designed to look like what the future would look like with the general technology of a certain time period. Usually, a common theme with Retrofuturism is having technological aesthetics more complex than they actually are in the future, or having the future not actually look that much more technologically advanced than the time period that that futuristic prediction was made in. A common example is with phones, as people in the past were mostly unable to predict that phones would basically be portable computerized videophones that can be used for purposes other than calling people, as their predictions did not look much more futuristic than the time period they were in most of the time, and it was hard for people in the past to predict something like the internet let alone cryptocurrency, and it is still hard today for humans to predict the future.