During the first funding period we have combined approaches from Linguistics, Biology and Physics to model collective decision making on a transdisciplinary level. We present the results of our work in a jointly written monograph „Collective Decision Making. A transdisciplinary Exchange between Linguistics, Biology and Physics“ that will be published in two parts. These parts culminate in the presentation of our transdisciplinary model on an abstract and conceptual level. In the proposed extension of the project the aim is to apply, differentiate and modify this model by setting up a specific focus. In order to do so, we reduce the number of involved disciplines and focus on the collaboration of Linguistics and Physics. However, the biological concepts that were identified in the first funding period remain formative for this endeavour. We investigate opinion formation as a primer for collective decision making from a discourse-/sociolinguistic and (socio-)physical point of view. Our approach uses methods from network analysis to facilitate an exchange between agent-based modelling and simulations in Physics with the empirical analysis of the communication processes of decision making in Linguistics. We base our investigation on textual corpora of Twitter communication and the Corona pandemic. The focus on an analysis motivated by Linguistics and Physics in the context of opinion formation forms a real desideratum.