Yeah, in the beginning, you know, we had this idea. We worked for one year with John and Lynn Kui, who had been Phil's first graduate student who came back to Berkeley on a sabbatical after he had become a professor at Duke. And his wife, Lynn was a obstetrical nurse. So we we asked, we invited them to work with us, while we tried to figure out what would go into this intervention to these weeks of working with couples. And we wanted to, we wanted some couples who are expecting babies and Lynn had access to some OBGYN ins in the Bay Area, because they used to live here when they were students. So we had the idea, we created a little interview, and wanted to tell expectant couples, what our idea was, and see what their reaction was. They answered all our questions about how it was going and what they were looking forward to, and what they were nervous about, and so on. And when we talked about the groups, they said, When do they start, like, Sign me up? So we sort of had to make honest people of ourselves and say, All right, we better try this. And and so we began to different pilot groups. And, you know, we didn't have a lot of data, but we asked them a lot of questions and looked for questionnaires and developed questions where we couldn't find any in, you know, in the literature, to get at these things that we thought were important. So then we do the first few evenings of our first couple of groups and fill in I leave the psychology clinic, they were usually in the early evening, right? And we get back into the car and we're about to go home and the first First thing that comes to my mind is what I was concerned about and what didn't work so well. And what I would like to try next week was crestfallen. It took us probably about a month to figure out that