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DanielleFong's profile
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@DanielleFong

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@DanielleFong

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Empire of the Future
Joined February 2008

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    1.  🤷🏻‍♀️‏ @DanielleFong 22 Jul 2020
      Replying to @maxrogo

      again, i see why you might think that but not why you have confidence. in fact onramping and off ramping seem like they could be more effectively managed than in a conventional subway in many instances

      1 reply 0 retweets 1 like
    2. Mark Rogowsky‏ @maxrogo 22 Jul 2020
      Replying to @DanielleFong

      My confidence is based on reading train people’s analysis on this. And also the fact that it will neither be speedy nor high capacity vehicles. https://www.google.com/amp/s/amp.cnn.com/cnn/2020/06/12/business/vegas-musk-boring-company/index.html …

      1 reply 0 retweets 0 likes
    3.  🤷🏻‍♀️‏ @DanielleFong 22 Jul 2020
      Replying to @maxrogo

      have read similar... was unconvinced! they seem to be searching for reasons it won’t work — 1 ply into innovation and stop. you usually see with with incumbents @FutureJurvetson posted a video of tunnel in LA. it was smooth as silk!

      2 replies 0 retweets 1 like
    4. Mark Rogowsky‏ @maxrogo 22 Jul 2020
      Replying to @DanielleFong @FutureJurvetson

      Almost all of Musk’s tunnel ideas ignore how hard it is to get people In and out of vehicles and necessary spacing for safety. The LV tunnel at least isn’t crazy complicated like the LA master plan. So it can *work* I agree. But outpoint a higher capacity system, I doubt

      1 reply 0 retweets 1 like
    5.  🤷🏻‍♀️‏ @DanielleFong 22 Jul 2020
      Replying to @maxrogo @FutureJurvetson

      these just don’t seem like the scale of problems that people make it out to. you can do input output in so many ways *because* of individual vehicles. as for spacing you don’t need very wide spacing at low speeds, or at higher speeds under computer control in a tunnel

      2 replies 0 retweets 1 like
    6. Mark Rogowsky‏ @maxrogo 22 Jul 2020
      Replying to @DanielleFong @FutureJurvetson

      All of this is able to calculated with known formulas (I learned them in b school so I’m sure people with better recall can provide them). It’s inherently a low capacity system design. You can’t exceed x vehicles per hour. And you can’t exceed z capacity per vehicle

      1 reply 0 retweets 0 likes
    7.  🤷🏻‍♀️‏ @DanielleFong 22 Jul 2020
      Replying to @maxrogo @FutureJurvetson

      imho should be way more skeptical of “known formulas” you can’t get further than your assumptions! say avg 5 people per vehicle, 1 minute to load (generous assumptions) 10 hours avg operating time is 3000 people. seem very possible to get loading to 20s-30s & like 3-5 parallel

      1 reply 0 retweets 1 like
    8. Mark Rogowsky‏ @maxrogo 22 Jul 2020
      Replying to @DanielleFong @FutureJurvetson

      But there’s one bore. And these known formulas define the throughput of every system on earth. Musk can’t repeal them. The train isn’t useful for 10 hours in the convention center. And isn’t at capacity for more than a few, when it will be overcapacity

      2 replies 0 retweets 0 likes
    9.  🤷🏻‍♀️‏ @DanielleFong 22 Jul 2020
      Replying to @maxrogo @FutureJurvetson

      in all of these case the limit is the # of cars and loading / unloading, which isn’t at issue when you use your own tesla. o you can ue baeload hare vehicle and fsd teslas for surge capacity

      1 reply 0 retweets 1 like
    10. Mark Rogowsky‏ @maxrogo 22 Jul 2020
      Replying to @DanielleFong @FutureJurvetson

      Whoa. Las Vegas and LA are two unrelated problems. The vision of many LA tunnels with many exits and entrances has many very different problems. It can’t really be built.

      2 replies 0 retweets 1 like
       🤷🏻‍♀️‏ @DanielleFong 22 Jul 2020
      Replying to @maxrogo @FutureJurvetson

      also this implies unnecessary restrictions on station design. also the 1000 capacity was about an airport link. also higher cap vehicles are possible

      11:55 AM - 22 Jul 2020
      0 replies 0 retweets 0 likes

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