The disruption wrought by COVID-19 seems like it should have created fertile ground for the spread of the freely available, openly licensed course materials known as open educational resources, or OER. With students physically dispersed and under greater-than-ever financial strain, faculty members were likelier than ever before to use e-textbooks and other digital materials to keep students connected.
If you find a dimension intereseting, we recommend you pick up one or two facts that you find intriguing and place them into your memory. That way you will have 2nd degree information about the topic if it comes up in conversation.
Accordingly, you can do the same with others as well.