Prof Aryan Kaushik and Prof Di Renzo discusses the trends, challenges, potential use cases, applications and prospects of deploying RIS and H-MIMO in future communications networks.  Professor Aryan Kaushik hosts Professor Marco Di Renzo in this podcast that sheds light on the role that these technologies can play as we approach 6G standardization.  RIS has been the subject of numerous research activities that has seen the original concept of RIS assisted networks significantly evolve over the years as compared to H-MIMO.  More recently we have seen the emphasis of the research community shifting towards H-MIMO research, specially as we move towards 6G and the potential use of higher frequencies than what has been defined for 5G.   RIS and H-MIMO, two exciting technologies, we hope you enjoy this second CTN podcast.