I think https://observablehq.com https://observablehq.com notebooks are a step towards it. Once you get into it it has the fastest feedback loop I have ever exp

I think https://observablehq.com https://observablehq.com notebooks are a step towards it. Once you get into it it has the fastest feedback loop I have ever experienced. The concept of reactively changing code with partial recomputation of the dependency graph is amazing.