We keep hearing about companies trialling drones for deliveries, but there are many practical obstacles to this, especially in cities. They cannot carry much, need somewhere to land and could be easily attacked.
This scheme seems far more realistic. It's like a robot cycle courier. You use an app to get access to the sealed storage an retrieve your package. If you live in an apartment then you might have to come downstairs to get it.
Robot are getting better at navigating messy environments. People have reached their limits. It's likely to put some people out of work, but we have to expect that with technology and find alternatives.
Not directly related, but this is interesting about alternatives to the economic growth model that is unsustainable. We have to accept that change will happen and find ways to deal with it that can work on a finite world with a growing population.

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