Abstract
My journey on the wiggles with Don started from February 2008, when I got an opportunity to visit the Caltech Seismolab as a visiting PhD student, which was made possible via Dr. Sidao Ni’s recommendation. A previous student of Don, Sidao was a professor at the School of Earth and Space Sciences (ESS) at the University of Science and Technology of China (USTC) at that time. Sidao offered the “Computational Seismology” class at USTC where I learned a lot about the modern developments in seismology. I also met Sidao many times to discuss a wide range of research topics, I believe it is a style he inherited from his experiences with Don and other professors in Seismolab.