Like computers, bike technology and riding could become a gateway leading to learning about all kinds of topics. Cycling fits into just about any subject. If you are intrigued by math and science then go off and calculate your best gear ratios or get involved in the various angles used in frame design. The Wright brothers and Henry Ford are two prime examples. If you are interested in the writing and expressive arts, perhaps you could take pictures or write about your experiences while on a three-day bike tour.
Some people love to mix it up in the political arena.
This involves reviewing local laws and customs. People who enjoy history might even go farther into bike culture by investigating old, oddly shaped bikes, as well as studying the history of wheels and bike technology. If you have an artistic bent, there's plenty to soak up. Take a look at the ever-changing styles of bike frames and design. The new models or experimental bikes have a space-age quality while the older Schwinns have the vintage car look.