Eight is already too long. Seven digits are generally chosen as a max
length due to short-term memory limits. Ten would be too long - and
as already pointed out, ISO country codes already handle sharding this
info.
I would actually argue that it would be better to reduce accuracy a
wee bit in order to shrink the post codes down to seven digits.
Kevin
On Tue, Jul 26, 2011 at 17:26, Kevin Brennan
<kevin.brennan at redsquared.com> wrote:
> On 26/07/2011 16:49, Keith Gaughan wrote:
>>>> make the code so long as to be useless locally.
>> 10 digits instead of of 8 would hardly make the code so long as to be
> unusable.
>>>and it's very doubtful that any world-wide geolocation postcode system
>> would ever trump the existing local one.
>> I wouldn't expect it would, however most post-codes are generally not
> geo-location based and numeric lat/long co-ordinates are long and error
> prone.
>> Having an open universal system which needs no registration may be
> beneficial (I don't know, I am just throwing it out there) - For example,
> sending mail to newly established refugee camp ?
>> /KB
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