As I understand it, Lent is a holiday where we celebrate the scientific method by changing exactly one variable in our lives for 40 days. This seems like a convenient Schelling point for rationalists to adopt, so:
What variable are you going to change for the next 40 days?
(I am really annoyed I didn't think of this yesterday.)
You're absolutely right. I've had a spot of trouble finding a source of fiber that won't expand and turn my version of soylent into a gelatin.
Inulin?