I really disagree. An IDE, and the browser example given below, are tools I'll spend thousands of hours using in my life. The discoverability is only important

I really disagree. An IDE, and the browser example given below, are tools I'll spend thousands of hours using in my life. The discoverability is only important for a small percentage of that, while viewing the content is important for all of it. This is exactly when I will have the 'knowledge in the head'.