Walmart ackuired jet.com just 4 months ago. Jet.com, a startup, has managed to create a logistics network being able to do 1-day delivery to 50% of the population(or at least they claimed so), reached $1B in sales rapidly. Walmart has recently started to offer free 2-day delivery($35 minimum), which means that now, even for Prime memebers. shopping comparison is a reasonable option.
Furthermore, Walmart has curbside pickup for groceries, a very convinient service to get your groceries on the way from work, is seeing a lot of sucsess according to Walmart, with availibility in 500 stores, and planning to be in 600 more soon.
And Walmart definetly has got a huge logistics chain, maybe less in areas where Amazon is strong at, but they're probably better at the china/usa logistics part, that's why Amazon is doing some of those moves.
And Walmart does have enough capital to compete.
And once this impacts Amazon, will Amazon be able to keep it's very high stock price ? and how will this affect talent and growth ?
In short: finally , we're in for some very interesting times.