An Operations Management consultant, Dr. Varun Gupta, has been asked to prepare a new SAP-based (SAP SE, Walldorf, Germany) ERP system training course that will be taught yearly at a local company. It takes Varun 7 hours to prepare his lectures the first time he teaches the course. If the steady state time to prepare the lectures for this course is one hour, and if Varun reaches this steady state during his 10th year of lecture preparation, what is Varun’s implied learning rate?