[alistairSH]

No clue but the “robots sweep the park” part is imminent.

We haven’t done it yet only because we require people to do menial labor for shit wages so they don’t starve.

Heck, several local restraints have done away with most wait staff. You sit down and order via a web site.

[gnatman]

If by "we" you mean Washington, DC - I guess I could believe that since it's one of the highest per-capita income cities in the world. But park sweeping robots are nowhere near reality for most cities in the US, let alone the rest of the world.