>Imagine dropping millions of these from a drone, carpeting a city This was the end of a science fiction novel from 1972, albeit the technology was an imaginar

>Imagine dropping millions of these from a drone, carpeting a city This was the end of a science fiction novel from 1972, albeit the technology was an imaginary substance called "slow glass": https://www.goodreads.com/book/show/939190.Other_Days_Other_Eyes https://www.goodreads.com/book/show/939190.Other_Days_Other_...