“…Critical systems practice adheres to these principles, and I will not, therefore, be addressing Points 11 and 12 in Michael's letter. For the evidence, see Jackson, 2020Jackson, , 2021Jackson, , 2022aJackson, , 2023 We are on the same side, and I cannot but be inspired by the vision behind 'blue marble evaluation' (Patton, 2020). I do, however, have things to say about Points 1-10.…”