Day 10 of the Global summer School in Barcelona marked the start of the Synthesis phase, then continued through day 11. The idea is not to create scaled models representing concepts, but rather take forward certain parts of the team projects to prototype as proofs of concepts. Documentation of this work is being done through two products: 1) a dynamic scale model showing the generative strategy as distributed in Torre Baró and 2) a 1:1 ‘detail’ prototype showing the working energy apparatus to be distributed in the site. For the development of this phase we have been joined by audio visual experts Ignacio de Juan Creix and Carlo Santi from TL3.