Talking to a Puppet

As mentioned, Johnny in the last phone conversation in the van is not talking to the person he thinks he is. The film reveals Takahashi at his desk, using his hand as if he were a sock puppeteer—but there is no puppet. His desk is emitting a grid of green light to track the movement of his hand and arm.

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The Make It So chapter on gestural interfaces suggests Takahashi is using his hand to control the mouth movements of the avatar. I’d clarify this a bit. Lip synching by human animators is difficult even when not done in real time, and while it might be possible to control the upper lip with four fingers, one thumb is not enough to provide realistic motion of the lower lip. Continue reading

Multipass

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The multipass is the all-purpose card of 2263. It’s a driver’s license, work authorization record, proof of identity, emergency medical information, phone card, plus all your credit cards in one. There is a white rectangle and yellowish, rounded-bevel shape on the lower left, each of which may be a button, but that we don’t see in use.

Often just showing it is enough for a human’s satisfaction, but sometimes it must be read by a machine. To do this, the holder inserts it into a slot, where the machine verifies its authenticity and registers the user locally. In Korben’s taxi, he has to leave it in as he operates the vehicle. At the Fhloston Paradise check-in booth, travelers dip it in and out of the reader.

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The act of inserting the card to authenticate may seem a bit old-fashioned in the days of RFID and read-at-a-distance technology, but it’s also nice to see that whatever agency was able to get the various corporations and government agencies to cooperate has also got privacy in mind. If it needs to be dipped to be read, maybe it can’t be read at a distance. That means the holder has more control over when and how it’s accessed.

As far as convenience, hot damn. It’s practically a wallet in and of itself. But there are security concerns to having all of this in one place. There are many cards that work like this in the world. Bus passes, skeeball tickets, gift cards. They’re generally low-cost. If you steal or forge Korben Dallas’ multipass, though, do you suddenly have his charge accounts, his taxi, and his phone card all at once? Seems high-cost, especially since the one forgery we see in the movie actually works.

This returns us, as so many things do, to multifactor authentication. This security philosophy requires that the user presents three factors: something they have, something they are, and something they know. The multipass covers only the first two.

  • The multipass itself is the thing they have.
  • The picture is something they are, i.e., what they look like.
  • It could be improved by requiring something they know, like a PIN or a password.

We don’t know what kind of power Cornelius’ order wielded in the world, but since it wasn’t enough to sway the president or purchase tickets to Paradise, let’s presume it wouldn’t have been enough to uncover Korben’s password, and in that case, the PIN would have foiled the attempted forgery.

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