Thanks, Felix! An excellent presentation of the compelling value of visualization and modeling tools of today.

(On my website I mention the first econometric model I ever built in 1987, which was for a state regulatory filing using SAS v5, had four cross sections, 36 months of demand in each cross section, and took about four weeks to complete, from manual data collection all the way through final model validation and writing of documentation and testimony. It was a pooled cross-sectional times series model, using linear regression with a lagged dependent price variable, plus other explanatory variables. This one model and its related validation analytics ran in about three minutes.)