Someone in Saudi Arabia is a fan of the late Isaac Asimov [a] (fwd)

(if anyone's still here...)

[UK news]

Plans unveiled for 100-mile long, 200 metre wide `mirrored' vertical city

    Saudi Arabia is planning to build an entire city along a single line
     100 miles long and just 200m wide.

     Flanked by 500m high mirrored walls, officials say the megastructure
     will offer up to 9 million residents a temperate climate and short
     commutes, all powered by 100% renewable energy.

     Named `the Line,' Saudi officials say the project is `the city of the
     future': a car-free metropolis that will run on 100% renewable energy
     and offer its residents clean air in an ever more polluted world.

     It's designed to host businesses as well as housing inside numerous
     vertically-stacked neighbourhoods, with residents facing a maximum
     commute of 20 minutes from one end of the city to the other.
        =====
rest:
https://metro.co.uk/2022/07/27/saudi-arabia-wants-to-build-a-100-mile-long-mirrored-vertical-city-17072161/

[a] https://en.wikipedia.org/wiki/The_Caves_of_Steel

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