WikiAlpha should store all notable information.
Perfection is generally considered to be impossible. In a world where obvious facts are disputed, 100% accuracy seems like a big ask. However, WikiAlpha has maneuvered through the most difficult of topics providing factual accuracy.
The concept is simple. WikiAlpha saves each user a significant amount of time, so giving back a small amount will benefit both the reader and the project. WikiAlpha articles grow and improve over time, so for each passing day, the benefit to society grows. The growth of the community is relative to the benefit and will create an exponential collection of accurate knowledge.