Let's suppose you want to save money on your heating bill, so you have your house inspected for that purpose. The inspector advises 3 things:
- double glaze the windows
- increase wall and attic insulation
- replace the door missing from your front doorway
You only have budget for one of these for now. Which to choose?
This is why we advocate free public transit. The private auto is draining civilization by wasting energy. It matters what we do first.