The interview process begins with a battery of required personality tests and required reading (Ray Dalio's manifesto). During the in-person interview you meet with 4-10 people throughout the day either 1:1 or in a small group. The interviewers provide frank feedback after each interview and it is all recorded (like everything at Bridgewater). There is basically no downtime - even during lunch they give you movies about the culture to watch. There are some unique interview items like a debate portion where you are given current event items to debate to assess reasoning skills. The firm is primarily focused on assessing cultural fit.