String 'bicycle' found on 6 of 504 pages from 1 sites. Text matched on no titles, no paragraphs, and no slugs. Elapsed time 1 milliseconds.
A seed for a story about computing. Starting with Steve Jobs' famous metaphor.
When their understanding of the basics of bicycle design was assessed objectively, people were found to make frequent and serious mistakes, such as believing that the chain went around the front wheel as well as the back wheel. pdf 
I learned to ride a bicycle first with a tricycle, then a bike with training wheels, and finally graduating when we took the training wheels off. There was a great innovation between then and when we taught our kids to ride. Balance bikes. In this path kids learn to scoot along and steer on a balance bike and then graduate to a pedal bike, skipping the training wheels entirely.
Don Norman suggests everyday things should have sufficient affordances that they do not need printed instructions. PUSH vs PULL on doors, for example.
Like wiki, riding a bicycle can be easy to do but hard to learn. Both are elemental. They have exactly what is needed and little more. More would make it not a bike or not a wiki.
Businesses talk about agile development as a way to go faster. This misunderstands both speed and agility. We offer two videos featuring bicycles to hopefully make the differences clear.