There is an abundance of valuable knowledge and information out there. The trouble is knowing where the good stuff is.
Publish courses made entirely out of other people’s content. Each course will have a read/listen/watch list with links to all the best content on the subject, arranged in the right order so you can go step by step until you finish the course and acquire the knowledge you wanted.
You would like to listen to some music or watch a video without using earphones, but there are others around you, and you don’t want to disturb them.
Install directional speakers in smartphones so there is a minimum of sound leaking to others.
Using positive words helps your brain develop, while negative words increase your stress hormone (according to some research.)
An app running on your smartphone that listens to you and analyzes the words you use. When your use of negative words goes above a certain threshold you set, the app will alert you.