The authors would like to thank Novellis et al for their letter. It is important to first clarify that the goal of our study was to determine the outcomes of robotic lobectomies, assuming they are performed by surgeons who are qualified and trained appropriately. We recognize that this fact may not have been applicable to all the cases included, but at the same time, there was no information to indicate otherwise, and in the current practice environment, the majority of surgeons most likely had a baseline level of training. The number of cases each surgeon completed to develop their skills on the robotic platform was beyond the scope of this manuscript. Like Novellis et al, others have cited the figure of approximately 20 operations to define the learning curve. This figure arises from limited institutional experience., A retrospective study of prospectively accrued data, spanning 7 years between 2004 and 2011, established proficiency at 18 ± 3 consecutive cases based on operative times, mortality, and surgeon comfort. This number has been confirmed by Veronesi et al. Ultimately, one must also appreciate the fact that accumulating ≥ 15 cases per year could amount to far more than 20 consecutive operations over an indefinite time frame. Without greater rigor in studying the learning curve, it is challenging to know exactly how this difference matters both qualitatively and quantitatively.