However rigidity as a concept is more a deterritorialization than anything they would have defined in A Thousand Plateaus as a rhizome, as the closest they came to a thesis (this was something they desperately tried to avoid instead opting to collect ideas to permit people to take, leave, use, support, refute, and be puzzled by what they found as was congruent with their conception.) would be that limiting understanding to concrete points of truth flattens reality and implies a center to a concept, when really everything is actually an overlapping continuum of perception and experience and identity and... there's a lot of concepts they cover in the book and it would take ages to go over them all.