Talk:1473: Location Sharing

Explain xkcd: It's 'cause you're dumb.
Revision as of 10:33, 14 January 2015 by Kynde (talk | contribs)
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It's a reference to the Uncertainty Principle, a property of quantum mechanics that states that position and momentum cannot be known at the same time. 199.27.133.98 05:20, 14 January 2015 (UTC)

I may be thinking too much into this, but couldn't she also not want the website to know her mass? Momentum is Mass*Velocity, and Velocity can be derived from change in position 173.245.56.159 05:34, 14 January 2015 (UTC)

  • That was my understanding, too. Moreover, I don't see any humor in applying the uncertainity principle to macroscopic objects. 108.162.254.57 08:53, 14 January 2015 (UTC)

Angular momentum sensors - a.k.a. gyros, not accelerometers. 141.101.80.109 (talk) (please sign your comments with ~~~~)

She does not want the website to calculate her mass and therefore her weight. It has nothing to do with the uncertainty principle -- Saints22 (talk) (please sign your comments with ~~~~)

I disagree. Of course it is funny idea that she says nice try as if the website had interest in her weight. But since you cannot calculate mass from position and momentum your ideas makes no sense. You need the velocity and the momentum to calculate the mass. So even though they could have both position and momentum they would still not know her mass. --Kynde (talk) 10:33, 14 January 2015 (UTC)

I do not not think that Megan allows the website to access her location. The website wants her to, that's why the button is highlighted and blinking. In the beat panel, Megan presumably denies. The website then asks for momentum and wants Megan to deny the request (by highlighting "Deny"), so that, according to the uncertainty principle, they can still get her location (which is what they wanted all along). However, Megan sees through this trick and acknowledges its cleverness with a "Nice try". --108.162.254.134 10:27, 14 January 2015 (UTC)

No I disagree. Of course the highlighted button is the one Megan pushes. And just because you do not know the momentum does not automatically give you the location. You just can't know both without a given uncertainty. --Kynde (talk) 10:33, 14 January 2015 (UTC)