That's simple: just offer them, at the age of 18, a choice between voting rights and an iPhone.
The Big O formalism actually bounds the error quite precisely. In contrast, approximate computing does not offer any bound for the error (or perhaps only in the statistical sense).
The problem is not to identify this. The problem is to change it.
This isn't done, because governments have far more control over them than bitcoins.
Fixed that for you
In fact, that's exactly how I think the government will, in the future, invalidate bitcoins (and keep control of currency).
They will put up a website where you can "validate" your bitcoins. The ones which the government doesn't like will get banned (because who wants to have "dirty" money?) and devalued.
Your analogy may work if you add that the sound of the singer is at frequencies near 1GHz (a high-frequency coloratura soprano?), and the sound is filtered as usual through a 44kHz lowpass filter before being recorded.
I think we just need an IQ test for politicians. That's all.
Is a car ever going to replace a running athlete?
There. That's how silly this question really is.
how is Norway going to know if the person doesn't self report?
They just look in the bitcoin transaction log (and link it to you via stuff you bought)
You thought bitcoin was anonymous?
It is the wet dream of the IRS (and NSA, etc.)
They have taken a thousand complicated steps to make this mission work, and you think they were just fooling around when it came to designing the landing procedure?
Nope. The Chinese are smarter than you want to believe.
Tell them this:
If your radiator is broken, do you ask a thermodynamics professor to fix it?
Of course not, he probably won't even know where to begin, and he will probably get it broken even more.
Tracking unique users is still easy (using a unique URL)
Not if google simply opens all e-mail behind the scenes, regardless of whether the user exists or not.
Uhmmm... what if google reads the images *regardless* of whether the recipient is known?
The solution is simple:
if(connection.ip_address in google_ip_addresses)
write(connection, "Sorry Google, only the user may open this image!");
So you want to hire someone fresh out of law school who never worked for a company, or what?
I was more thinking along the lines of a Zen Buddhist monk.