A close friend of mine was on a previous Hi-SEAS, and I can say that this was also one of the first questions we asked of them upon their return to Earth. According to my friend (who I&#x27;m not identifying out of respect for their privacy), the, uh, &#x27;interpersonal relations&#x27; are in fact both manifest and juicy, and are a very substantial part of what they cover during the extensive surveys and debriefs that take place during and after the mission. It&#x27;s a big part of what they&#x27;re studying, even if they don&#x27;t talk about it publicly.