Related to the soon-to-be-revised index-card manifesto, I have a question, raised by some of the feedback I got:
My assumption is that sooner or later all personal vehicles -- and eventually all vehicles, period -- will be powered solely with electricity from renewable sources: wind, solar, hydrokinetic, biothermal.
Here's my basic reasoning: Humanity's energy reserves (fossil fuels) are finite. We need to start living within the earth's solar budget. Consider the following three alternatives (and pardon my utter lack of technical sophistication):