What actual real world problem does bitcoin solve other than foreign exchange transfers and black market operations?
> The Times 03/Jan/2009 Chancellor on brink of second bailout for banks
A real-world problem is governments giving trillions of made-up dollars to the huge companies that lost trillions of dollars, while allowing them to keep the money they made when they started taking these risks.
A real-world problem is that governments creating trillions of dollars is not a risk-free endeavor; the value has to come from somewhere, and it comes from you.
A real-world problem is that central banks are not good at their jobs, and they enable governments to behave irresponsibly with their currencies.
It's not even that popular in black-market, unless you are living in your silicon bubble.
It could be used by digital forensics to timestamp digital evidence and prove that it was not "tampered with" during the analysis phase.
The Bitcoin blockchain can be used for many things other than a "currency".
To expand on this, a simple cryptographic hash stored in a safe can be used to do something like proving a digital item hasn't been tampered with. The blockchain seems to me to only solve for the problem where the "system" is so corrupt that you can't trust anyone. I just don't think the "system" is that corrupt. So, I doubt blockchain has any real-world merit. Time will tell.
Or just pass a law requiring you comply or else.