Thanks again. I realize you can assert "history" will prove your assumption about the next 20 years to be correct, but I think it can be misleading, and even dangerous, to only extrapolate the past into the future and then tell ourselves we have done everything possible and necessary to "plan" for THE future, and then act accordingly.  

For the reasons stated in my other comments, among others, I think we should base huge public investment decisions on what options might be most resilient and effective no matter what the actual future holds in store--including plausible scenarios other than only THE "official" future.  

On that basis, I think incentivizing current and emerging forms of tele-work and ride-sharing may prove more feasible and cost-effective in alternative futures other than "continued (full employment) growth", such as "jobless" growth, mostly low-wage job growth, and various types of stagnation, decline, collapse, and more transformative "restructuring" scenarios.