It's New Zealand you Muppet. We don't use pounds.
Great, so what if they had a flip phone, or no data connection was available? Or maybe the phone decides to throw up a smarmy "you can't install this app on this device" for whatever reason?
I don't get this opposition. You'd do something else, wouldn't you? Why would you consider always going to the lowest common denominator just because someone might have a flip phone?
It is truly dangerous to rely on an "app". This should only be used as an option for when all else fails, not something to solely rely on.
If the options are "rely on an app", "don't rely on an app", and you can't do the first because your phone can't do that for whatever reason, you fall back to the second. But if you can do the first in a particular case and it works better for that case, why wouldn't you? It's wrong to use the better solution as a last resort, it's better to use the best solution that is available to the situation.
Gold is great. It just has a few flaws:
When used indirectly to try to get around these problems, (e.g. gold backed dollars), new problems spring up due to the ridiculous level of trust required in the institutions who are "looking after" the gold:
So, what's needed is a purely non-physical asset with the same positive monetary properties as gold but without the above negative properties that make it impractical in the modern world without resorting to the different set of problems introduced when using proxies like gold backed dollars. That way, you don't need to have a currency "backed" by the asset, but can instead use it directly. For the Happylandians in my silly little story, that's Joycoin. For us here in the real world, it's Bitcoin.
Just for full disclosure of anyone else reading this: I screwed up the inflation maths in my original comment since I did it based on population growth instead of economic growth. It doesn't actually change the result though, just the exact numbers that are there.
Elegance and truth are inversely related. -- Becker's Razor