I've made a remarkable discovery: there are numbers in between 1 and 90. In honor of my genius, I call them 'gwernums'; examples of 'gwernums' include '5', '9', and gwernums requiring advanced techniques, like '20'.

Instead of waiting either 1 day or 3 months to post chapters, authors can post after gwernum days! (In the interests of promoting a more sane update schedule worldwide, I hereby release all known gwernums into the public domain.)