The discussion centers on the process of applying for Ph.D. programs and the interactions between students and potential supervisors. In the U.S., students typically apply to a department without initially selecting a dissertation advisor. Informal contacts with potential advisors can be beneficial but are not mandatory. Students often apply to multiple schools to increase their chances of acceptance and to explore scholarship opportunities. It is common for students to visit graduate schools and not accept offers, which is an accepted part of the process. To manage this, students should communicate with supervisors they met, thanking them for their time and informing them of their decision to pursue other options. When applying, students should ensure that potential mentors have openings and align with their research interests. Building a good rapport with advisors and lab members is crucial, as these relationships can significantly impact the student’s experience. Overall, the key is to balance contacting potential mentors with applying to multiple programs while maintaining professional communication throughout the process.