The annual retreats are meant to foster scientific exchange, collaboration and team building within the CRC-TR. Every year, students and post-docs in the CRC-TR get together at an annual retreat, which is organized by the students themselves with the help of the IRTG coordination office. PIs do not participate in these retreats. However, students have funds to invite external speakers. During the retreat the attendees have the opportunity to present their work to their peers and discuss possible opportunities for exchange and collaborations. Guests, from the academia or from the industry, also give the attendants further opportunity to create new links/collaborations and extend their personal scientific network.