@OutOfSpace @aral That's also the marketing line that is supposed to make this sound more reasonable and just.
In reality it will be: "based on available data we predict that you desperately need this. We charge a 500% premium just for you in these circumstances".
(also see: Uber Surge Pricing; Uber has been accused to charge more when battery is nearly dead - Uber denies this: https://www.vice.com/en/article/uber-surge-pricing-phone-battery/ )