In a recent article, in Issue 2 or 2022, Horvath 1 analysed the words and expressions that we use in the field of Computational Design research, and how the expressions have changed in popularity and application over the decades. Reading the article made me reflect on some of the terminologies that have come into use that I have always found somewhat uncomfortable.Disruptive technologies is the term often used when talking about inventive digitally enabled innovations in Architecture and related disciplines. First coined by Christensen in an article by Bower and Christensen, 2 it was a term used to describe innovation that creates a new product or market that displaces established products or markets. 3 The disruptive quality is a secondary effect. It is the effect of the new innovative technology on similar, or parallel products or industries, that might have to change in response. But the word disruptive normally suggests that something is troublesome; it is a negative term. So it has always seemed to me to be strange to use a negative term to describe a technology that is innovative, its primary quality.I have always thought that if the world of business and industry is presented with a technological development that will improve or enhance, 'wouldn't transformative be more appropriate?' That is the more direct, primary effect of an innovative change. It might be a change that makes others think about how to adopt, or respond to, the change, but even then that is more a case of a provocative change rather than a disruptive one. So I have never used 'disruptive' in the way that many others have.Another term that has become accepted is analogue (analog). This has come to be the term applied to a physical delineation of a digital representation. In the old days, the physical model that was counterpart to the digital one was called a physical model to distinguish from the digital. But drawings, models and other models derived from digital data are now regularly referred to as analogues, though they rarely have a digitalcomputational engine driving an aspect of behaviour in the real world. The analogue wristwatch, for instance, looks like a conventional watch that operates via physical (springs and gears) means but has an active digitalcomputational engine driving its operation rather than those springs and gears.Three friends wrote a very interesting paper in 2006 (Martens, Mark and Chen 4 ), examining aspects of the digital-analogue discussion and do engage in deeper discussion of examples that do beyond the simple physical representation of a physical artefact. However, they do note that 'A digitally reproduced physical model processed through a 3D printer or CNC milling machine may express the same qualities of intention and material representation as a model produced by hand'. I wonder if it isn't actually the CNC machine that is the analogue element in this processit is a device emulating a conventional manually controlled milling/ CNC machine but with a computational-digital controlling mechanism rather than...