Er.......

It means turn around and go back 210 miles to go there

Kilometers.... Not miles... Australia uses the metric (an Australian told me that in person, well in a private chat, but I consider that in person). But yeah, go back 210 km also crossed my mind ;)

Ugh so not American 🙄

I know... But all the cities on the sign are in New South Wales which is a state of Australia and not the US. :)

Credit to quubog on Reddit.

distance is defined as the norm of the displacement vector. As such it cant be negative if your metric is positive definite.

Now if your metric isnt positive definite, like say in Minkowski spacetime, you can get negative norm distances, and they have a pretty clear description in that context. Say you take the metric to be (1,-1,-1,-1) then differences which have negative norm are called spacelike, means that to reach between two such points you'd need to travel faster than light, and hence causally disconnected.

So, the sign is telling me I can't ever get to Sydney? 🤔 Probably true at the moment.. 🤷😅

I'd need to investigate further (should be easy to triangulate the position of that sign from the other four places) to tell you if that's a typo or you passed Sydney 210 miles ago... 🤔

Hehehe, well I found this on Google streetview.... Although the latter crossed my mind I know the road definitely leads to Snndey (that road even ends there), but yeah, passed 210 km ago (Australia uses the metric) was also the first thing that crossed my mind.

Oh, how could I be so American..? 🙈🙈🙈 Of course it's kilometers - this is the civilized part of the world. 😅

Nah, it's alright... When you hear people from the US and the US speak of miles all the time, you'd easily forget that not all English speaking countries use the imperial (although as far as I know those two are the only two left in the world)...

Angry American coming in in 3-2-1....

Come at me. 😏😅

I've never been in Sydney... Is it really such a bad town?

No. It's a perfect city that I want to explore. It also had trains in underground.

Yeah, perhaps I should go there myself... It's one of those cities you hear a lot about (along with Paris, Amsterdam, London, Berlin and of course New York).

Yep.