Derived from the author’s practice of Tai Ch’i and related arts, The 70% Rule is the most important guiding principle for all he does. It states that, in most cases, one should have some containment, some power in reserve. This principle will return often in the KiRABBlog. For now, Reb Drew asks readers to let the idea sit for a while and acclimatize themselves to it, not trying to “overachieve” at doing less.