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View Diary: Tesla Model S Has Arrived: You Have a Duty to Buy One (If you can afford) (335 comments)

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  •  It's still a car. (7+ / 0-)

    In other words, a machine for carrying around people and things much smaller than itself at accelerated speeds, which has to propel itself along with its passengers and cargo. Which means that no matter how efficient the engine or clean the energy source, you're still having to expend the joules to move an extra 2 tons of mass. That's a lot of joules. And because of the speed that a car affords, you're moving that mass greater and greater distances.

    My physics is rusty, but I'm pretty sure that the difference in energy expenditure between moving 100 kilograms of human 3 kilometers and moving 1,100 kilograms of human-plus-machine 15 kilometers is substantial.

    The Tesla is an incremental improvement being sold as a revolution. The real path to the future isn't in creating a glorious new industry to enable us to consume unnecessarily huge amounts of energy in a sexier steel carapace. It's in redeveloping our urban areas to make them more compact, so that the majority of trips are short enough to make travel by foot and bike practical, and in diverting the longer trips to mass transit systems.

    "The great lie of democracy, its essential paradox, is that democracy is the first to be sacrificed when its security is at risk. Every state is totalitarian at heart; there are no ends to the cruelty it will go to to protect itself." -- Ian McDonald

    by Geenius at Wrok on Sat Jun 23, 2012 at 05:49:16 AM PDT

    •  Thanks for your excellent input (4+ / 0-)
      Recommended by:
      Geenius at Wrok, eXtina, AoT, NYFM

      "It's still a car," it still needs ever increasing highways and roads. Show me some high-speed rail cars and I'll be impressed.

      "an incremental improvement being sold as a revolution." The real revolution is that 18-34 year olds are buying more bikes than cars. They are not paying attention to any auto sales pitches.

      ❧To thine ownself be true

      by Agathena on Sat Jun 23, 2012 at 06:45:09 AM PDT

      [ Parent ]

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