Boy? Dunno how old you are - I just indicated that I am way older than nweb01 ;-)

I *do* know about P2P currency, transaction verification and privacy.
(I actually designed a protocol with authentication and secured with asymmetric encryption)
As the many shibes on this forum can attest, numerous are those who lost coins without being able to get them back
*even* if they can find what address they are in now and they can "see them sitting there". Still no way to avoid or reverse stealing
unless with *major* effort. So, the paper you quoted shows how it works in theory - completely safe (and I agree).
The practice shows us a different picture...

BTW, I actually did read most of the posts on this (and other) forums before I started posting,
I hope that you will be able to tell from the info in my posts. If you do not know the person you
are commenting about, you may ask me to clarify so we get a dialogue instead of you coming
across as showing off how much better you are than the person you are commenting on,
without even knowing them. Your reply is not helpful or encouraging and you still have no idea
of all the reasons *why* I doubted the safe storage of value.
To give you one more (why I said "it is relative") is that the coin value can crash, so the value is never guaranteed - not safe.