Is it time retailers in the UK replicate the success Walmart has achieved in competing with Amazon? 

It's no longer difficult to understand how many people within a 5 mile radius of a store have purchased digitally, and you don't need a mathematician to find out that the fulfilment from that store to the customer would be cost effective by any standards. 

The technology is there to rival Amazon's Prime solution within a very short time, giving retailers the opportunity to disrupt the market and to stop losing customers to Amazon.