POLL: When should bitcoins be considered lost forever

[Flashman]

Quantum entanglement data communication has been demonstrated in the lab and is currently undergoing testing at significant distances.... this should mean, that by the time we are ready to go to other stars, we can have a hugely powerful laser pointed at the destination, that while it will take the speed of light time to first establish the link, will then offer instantaneous communication, so first humans to alpha centauri could possibly have a less laggy internet connection than everyone does now. Provided they remember to fire the laser about 5 years before they get there.... (Not absolutely sure on this, but it may be required to drop off a mirror exactly halfway, easier than freezing the photons for 5 years I assume.)

I'm not a physicist, but many answers in the Physics Stack Exchange seem to agree that communication via quantum entanglement is not possible. For example: http://physics.stackexchange.com/questions/15282/quantum-entanglement-faster-than-speed-of-light

That was 2011, do you read 19th century textbooks about aerodynamics? 

http://www.nature.com/news/quantum-communications-leap-out-of-the-lab-1.15093

[R2D221]

I'm not a physicist, but many answers in the Physics Stack Exchange seem to agree that communication via quantum entanglement is not possible. For example: http://physics.stackexchange.com/questions/15282/quantum-entanglement-faster-than-speed-of-light

That was 2011, do you read 19th century textbooks about aerodynamics? 

http://www.nature.com/news/quantum-communications-leap-out-of-the-lab-1.15093

Your linked article only talks about using quantum physics to send private keys securely. It mentions nothing about sending them faster than light.

Here's a link to a more recent question (2015) which still states it's impossible: http://physics.stackexchange.com/questions/157018/why-does-the-speed-of-light-totally-prevent-instantaneous-information-exchange/157022#157022

It basically says that having faster-than-light communication enables causality violation, such as the Tachyonic antitelephone.

Also, in what kind of system is 2011 in the 19th century?

[Flashman]

That was perhaps the wrong example, being as they were focussed on the "telltale" nature of quantum keys.

However, quantum teleportation research has been heating up the last few years, and practical demonstrations of it's abilities will probably be more widespread in the near future.

"What we knew" about heavier than air flight was turned on it's head in 3 short years from the end of the 19th century. I meant to draw a similar parallel.

I'm sure the well meaning amateurs on stackexchange will catch up with this eventually.

[R2D221]

I'm sure the well meaning amateurs on stackexchange will catch up with this eventually.

You say that as if you knew something that they don't. In such a case, you should contribute to them.

I still don't understand how the causality violation is resolved, or maybe we can break causality without any consequences? (I find irony in that question)