President Yoon Suk Yeol of South Korea visited MIT on Friday, participating in a roundtable discussion with Institute leaders and faculty about biomedical research and discussing the fundamentals of technology-driven innovation clusters. South Korea, Yoon noted in his remarks, has highly regarded educational institutions, hospitals, and research facilities, along with robust legal and business systems. However, he added, the country still aims to develop the kind of biomedical innovation cluster exemplified by the Kendall Square area in Cambridge, Massachusetts, where a confluence of established and startup firms, academic research, and…