After the events of 9/11, the skies were empty for a few days
> During the three-day commercial flight hiatus, when the artificial clouds known as contrails all but disappeared, the variations in high and low temperatures increased by 1.1 degrees Celsius (2 degrees Fahrenheit) each day, said meteorological researchers.
A live map also reflects all the current changes the subway is underway, such as maintenance, closed stations, etc…
Of course people managed to go use the subway for decades using this old map, what they're trying to do is improve on things.
I for sure would like to see that kind of tech used for other subways in the world.
IMHO we are trained to look for a home link in the header.
I'd say that, even though the author put a link in the article, it's easy to miss it if you read the whole article first, then try to find more informations about Kakoune :/
And you'll see you just needs a single CSS property `backdrop-filter: blur(8px);` to achieve this effect nowadays =)