Here is another attempt at bridging the gap between weak and strong problem solving methods. Analyze-Modify, which has been used in many of the systems we've studied so far, has been identified (in this paper) as a powerful, general but inefficient solution. the general gist of Prompt is to provide a level of explicit knowledge that is one step above first principles, the term the authors use to denote fundamental domain knowledge, to save the overhead of reasoning with it.

      I questioned the claim that Prompt could "invent" the concept of a tube in the introduction. I was very pleased at how well the example problem and presentation of the system explained and justified this claim. Most similar statements in other research work do not achieve this... or I lack the intellect and insight needed to understand the explanations. Bravo to Murthy and Addanki for speaking down at my level.

      A point is made of the prototypes in Prompt containing structural descriptions and how this helps analyze the behavior of components from first principles. They fail to mention that having a description of structure is necessary for Prompt to be able to change the structure at all.

      An interesting concept is evaluation of a design and attributing the result to the various characteristics of the design in order to choose a modification to produce a better design. This is not trivial task. Prompt does analysis using first principles. A different approach for the same problem could be using back propagation in a neural network. Back propagation is (roughly speaking) a method for propagating error back through a network, adjusting individual nodes until an acceptable value (or evaluation) is achieved at the output end. This requires that nodes that effect the outcome be identified and modified. The nifty part is that the knowledge to do this is not explicitly stated in the system. How well could this technique be used in Prompt?

      What do the author's mean when they say "...envisioning apparatus within Prompt has been implemented..."? In what sense does Prompt picture itself? Also, the paragraph before the Conclusions section seems to belong in that section. Not that that matters all that much I guess.