A method for utilizing system lag to send facts to an end user. The method begins by monitoring a computer system to identify said system lag. After identifying system lag, the method determines an estimated length of the system lag, the estimated length being a measurement of time. The estimated length takes into account previously identified system lag lengths to better approximate the current system lag length. After determining the estimated length of the system lag, the method sends a fact to the end user during the system lag. The fact sent to the end user has a length equal to or less than the estimated length of the system lag. Finally, the method stores the actual length of the system lag in order to improve subsequent determinations of the estimated length.