Maybe physics needs a more holistic light theory based on stillness and the two-way motion of each phenomena in the cosmos: https://wikischool.org/divided_light
Thanks for the feedback. There will be a "font-switch" option and I may need to do some user testing for the best default font.
The speed issue is really a Wikipedia (and Archive.org) API fetching issue plus some parsing time. I am planning to make the data fetching parallel, but need to do some data-source-code refactoring first. A better loading indication UI will also help.