Articulating the ineffable. Programming language theory 
cognitive psychology. PhD @Stanford
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Last year Morgan taught me about F9 in Excel and since then I’ve wanted it in my code editor https://observablehq.com/@tophtucker/eval-in-place … (just a toy demo, lmk if you have ideas how to support scope)pic.twitter.com/L3NvBreOHW
Nice demo, interactive evaluation is a totally underexplored idea. To your question: yes this is an instance of referential transparency. And to handle scope, you probably need reflection, eg Python's vars() function.https://twitter.com/wcrichton/status/1207166522545721344 …
