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A comment on Amazon Delays Opening of Cashierless Store to Work Out Kinks. Parent comment

Re:Amazon Delays Opening of Cashierless Store to Work Out Kinks by notgood on Monday March 27, 2017 @09:55PM (#13973415)
They realize that amazon now measures the height of each customer, also has a miniature drone following them around and each floor tile measure the weight of the people for that extra data point, oh and some have employees disguised as customers whom help the system when in doubt.
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Re:Amazon Delays Opening of Cashierless Store to Work Out Kinks by throwanem on Tuesday March 28, 2017 @06:41AM (#13975468)
'Who help'. 'Whom' is the objective case, parallel to 'them'; a good way to test the correctness of a particular use is to substitute the latter for the former and see if the sentence is still grammatical.
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Re:Amazon Delays Opening of Cashierless Store to Work Out Kinks by Neliquat on Monday March 27, 2017 @11:02PM (#13973706)
Weight belts, got it.
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Re:Amazon Delays Opening of Cashierless Store to Work Out Kinks by victor9000 on Monday March 27, 2017 @11:19PM (#13973774)
and platform shoes.
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