What element is identified as the core invention defining the success of the modern grocery delivery app?

Answer

The algorithm that could efficiently map a shopper to a list in real-time.

While many components like mobile connectivity and the idea of remote ordering existed previously, the critical technological leap that defined the modern, successful grocery delivery application was the development of the underlying algorithm. This algorithm possesses the necessary computational power to efficiently match an incoming shopping list to the nearest available shopper in real-time. This real-time mapping capability transformed any local store into a potential, flexible distribution node, which was the essence of the scalable model.

What element is identified as the core invention defining the success of the modern grocery delivery app?
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