Every map of China is wrong
medium.com
Every map of China is wrong
1–10 of 275 posts
Re: Every map of China is wrong
#2This just seems bizarre. What’s to stop companies in other countries from meaningfully mapping China using satellite data? Can’t they figure out the amount of obfuscation or use AI algorithms to align the maps correctly?
Re: Every map of China is wrong
#3This just seems bizarre. What’s to stop companies in other countries from meaningfully mapping China using satellite data? Can’t they figure out the amount of obfuscation or use AI algorithms to align the maps correctly?
As far as I can tell, the only thing stopping them is that China considers it illegal for them to do so. Companies that provide a map of China would probably also like to operate in China, so they comply with their laws.
Re: Every map of China is wrong
#4This just seems bizarre. What’s to stop companies in other countries from meaningfully mapping China using satellite data? Can’t they figure out the amount of obfuscation or use AI algorithms to align the maps correctly?
As far as I can tell, the only thing stopping them is that China considers it illegal for them to do so. Companies that provide a map of China would probably also like to operate in China, so they comply with their laws.
someone raised this point in another discussion about it, but I wonder if that's the main aim why you need the obscure algorithm in the first place, couldn't you just have these laws about maps of any standard?
Re: Every map of China is wrong
#5This just seems bizarre. What’s to stop companies in other countries from meaningfully mapping China using satellite data? Can’t they figure out the amount of obfuscation or use AI algorithms to align the maps correctly?
It must have seemed like a good idea at the time. Back when surveying was analog. Way back in... 2002?
Re: Every map of China is wrong
#6So Openstreetmap must be illegal in China!
And indeed it is: https://wiki.openstreetmap.org/wiki/China
Of course that doesn't stop people from mapping every bench in China https://www.openstreetmap.org/search?query=China#map=3/33.99...
Re: Every map of China is wrong
#7Re: Every map of China is wrong
#8So Openstreetmap must be illegal in China! And indeed it is: https://wiki.openstreetmap.org/wiki/China Of course that doesn't stop people from mapping every bench in China https://www.openstreetmap.org/search?query=China#map=3/33.99...
I love humans and the internet :)
Re: Every map of China is wrong
#9I haven't read 3BP myself (but I have read you all discussing it numerous times), so take the following with a grain of salt:
Might this be a 2002 foreshadowing of the 2008 novel, in which GCJ-02 was meant as an anti-sophon measure?
(I checked to see when CIA had a network liquidated, but that was 2010, so —unless someone's been applying a temporal obsfucation algo— any earthling paranoia leading to metaphorical wallfacers was already in the zeitgeist before that action was taken)
Lagniappe: https://www.youtube.com/watch?v=c8dX-A4h2DU
Re: Every map of China is wrong
#10This just seems bizarre. What’s to stop companies in other countries from meaningfully mapping China using satellite data? Can’t they figure out the amount of obfuscation or use AI algorithms to align the maps correctly?
The obfuscation algorithm has already been reverse-engineered, so no AI is needed.
https://wuyongzheng.github.io/china-map-deviation/paper.html