Can you expand a little bit on your question? I'll answer the best I understand your question.

Being in industry with a large firm, feedback is very simple to get, I just go give a talk at an internal seminar.

Results of a model or an implementation? Repeated observations/out of sample analysis often help with validating models. Implementation depends on the project.

Sure. I was trying to understand how hard it is for economists to make progress fast. I would imagine an economic model takes months to years to validate. I'm used to getting instant feedback from a computer when writing a program.

Do you see the way economic models are built and tested improving or happening faster? Or is the main barrier not lack of diverse data points, but needing enough time to pass to stress the model.