Correct, but the accuracy issue is a weakness in lat/lon based coordinates as well. If you use your consumer GPS or phone to find your lat/lon, you might indeed be a long way adrift and you might get different values on different occasions. Imagine that you were relying on that to get your shopping delivered...
In my example the party that needs to do the translation from w3w to lat/lon would be Amazon, and they will probably be paying w3w for a licence to do that. On 2015-11-30 13:30, Lester Caine wrote: > On 30/11/15 11:59, Colin Smale wrote: > >> I think their big attraction is the 75% (their figure) of the world that >> doesn't have a functional address system. The added value in the UK is >> indeed zero. In some tribal village in Africa for example where an >> address might not get any better than "3rd mud hut on the left after the >> group of 3 trees" the idea of giving all the dwellings a simple address >> might open the world of e-commerce up to them. They will have an address >> to use, and Amazon's drones will be able to find them. Maybe not today, >> maybe not even tomorrow, but soon. > > But 'What3words' can't actually locate them ... you HAVE to convert it > to the GPS coordinates. Third hut on the left at least works without > needing a mobile phone :) Doing the reverse process you need an accurate > GPS system to establish the coordinates before you can convert that TO a > w3w title. If the mapping system is only accurate to 10mts your android > drone has a selection of targets. I've just looked up my own address in > the UK and depending on which map overlay I select I got four different > answers, some the next door addresses.
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