In this article, the author talks about how to face the not knowing and offers a strategy to fill the gap of not knowing. In coping with constant change, he describes a strategy for library staff that might help in the absence of certainty. This includes: (a) guarding the data with one's life; (b) build not for longevity, but obsolescence; (c) learn a technology only well enough to do what is necessary; (d) choose a vendor carefully; and (e) if it does not have an application program interface (API), it is not worth having. The author also suggests becoming comfortable with the not knowing and fostering personal and professional strategies when things do not go as planned.