In the last week before the Christmas, some of us who are still around the campus decided to get together and celebrate the coming winter break with an intellectual feast served with delicious Thai food for lunch. This is CQIA's second member gathering and journal club. We thank our members who are still around and join us in this event. Especially, we thank Brian for giving us an amazing talk on using Machine learning to help experimentalists to estimate the state of a large quantum system. This multidisciplinary topic that combines two of today's most heated developments in technologies also sparked very interesting discussions in the room. These discussions on the generalization and foundations of understanding the flow of information between the quantum system and classical machine learning system truly made this journal club very rewarding and we believe each one of us learned a lot in the process.