destinyland writes: Amazon.com is quietly trying to resurrect the failed business models of WebVan and HomeGrocer — two dotcoms which had offered home delivery of fresh groceries — with a new service called Amazon Fresh. Last week at a shareholder’s meeting, Amazon CEO Jeff Bezos fielded questions about the current tests being conducted in Seattle. Bezos admitted Amazon is "tinkering" with the economics of it, adding that "we continue to think about that...We like the idea of it, but we have a high bar of what we expect in terms of the business economics for something like Amazon Fresh in terms of profitability and return on invested capital." No further details were forthcoming, but Bezos still acknowledged that "we continue to think about that."
Thus mathematics may be defined as the subject in which we never know
what we are talking about, nor whether what we are saying is true.
-- Bertrand Russell