Designer Gustav Düsing studied architecture at the Architectural Association (AA) in London and it certainly shows in his furniture. It's extremely architectural; I have seen trusses like that in buildings. He says he is "focused on digital fabrication" and writes:
Led by the idea of flat packaging and easy assemblage, the single elements of this chair are planar and designed to be slotted into each other, without the necessity of any glue or screws. To maintain their position, all joints are defined as an interlocking system, which, once it is fully assembled, cannot be dissembled again.
The formal design concept of this chair is based on the natural form of a skeleton: a central backbone element defines the overall shape of the chair and branches out into a set of ribs forming the seat. The legs are designed to provide a stable position with their shape reflecting the natural load distribution and are therefore reduced to trusses with tension and compression members.
I don't know what the designer did with all the pieces he cut out to make it look so skeletal; Using a CNC router to cut pieces out is subtractive and a factor in evaluating a design is how efficiently it uses a sheet of plywood. But it is certainly elegant and lighter for all the subtraction. More at Gustav Düsing ; Inhabitat also saw this in Berlin.