>> cutting delivery windows down to 1 hr, and that absolutely destroys your delivery density...on the order of 10-15x. This is of course, is the opposite of th

>> cutting delivery windows down to 1 hr, and that absolutely destroys your delivery density...on the order of 10-15x. This is of course, is the opposite of the grocery delivery model that do work: A constant weekly delivery(you can change items of course), at a fixed day/time(according to delivery times to your area), in a returnable passive cooler box before 8:00 am. You don't have to be receive. That way, after a bit of scaling, you can get to a good delivery density. But of course, that's a different offer than 1-hour delivery. But is it not appealing enough ? or is the problem that other, stronger retailers can relatively easy copy it ? Because if it's the latter, Walmart did already win(almost), at least on the logistical front, and that would explain why Amazon focuses on buying a niche company with a main skill of having unique products, and rich customers.