How do I comment?

Pendulum uses a Discourse-based forum for commenting. This has a number of advantages over other systems. If you want to comment, you simply need to make an account on the Pendulum Forum. As the Pendulum Forum is part of the Omnifora Network, you will be creating an Omnifora account to access the Pendulum Forum (this will give you access to several different sites using the same username and password). The account-creation forum is located here.