Bridgewater Associates Software Developer interview questions

I applied on Bridgewater's website and got a email some weeks later. They asked me to do a coding problem. The coding problem is not hard and I had 1 week to finish. Then they called for a phone interview. They asked some questions about the resume and discussed my solution to the coding problem. Within one week they called me for the onsite interview. The onsite interview includes one round technical and one round behavioral. The behavioral is very strange, they let you choose one public policy topic out of four and discuss the topic with two interviewers. They want to know your thinking process and want to know whether you fit their culture. Not surprisingly, got a rejection right after the interviews. Culture fit is really very important for bridgewater. Look at their philosophy on their website and think about it before the interview