Programming insights to Storytelling, it's all here.
If you read any commentary about Uber, it is awful. It might even be one of the worst companies. Whether it is for their discrimination of women, their political affiliation, the extreme pay gap between driver and employee, or robbing taxi drivers from their jobs, they have all the ingredients to constitute what most people would call bad for humans. But at the same time, they have created one of the most useful business in our decade.
The web is only dynamic because it allows us to input data. Although data comes in many forms, the most prevalent and simplest is still text. Text can be written using a keyboard, real or virtual. Whether you want your users to write you a message, or add content on the page like Facebook, you need an input box where they can type.