Building high quality anki flash cards is sometimes difficult and time consuming. When I first started when flash cards, I always asked myself when and why I should make a card. Sometimes it was a spur of the moment decision. Some cards didn’t last very long, or I had to mark them down because they were poorly worded. Other times those cards didn’t follow supermemos 20 rules, which I consider to be a standard goldline practice for making any flash cards for long term memory retention, regardless of subject. Sometimes I make a card which I found interesting but really had no application to any goal I am striving to achieve.