You can read it here. https://forum.bitcoin.org/index.php?topic=16457.0

As a Newbie, I can't post on that thread.

So, here's my thought on the subject.

If Bitcoins are a set of digital Alpha/numerric characters for each Bitcoin, then each REAL transaction should add the sellers 'input' characters to the code that verify that the seller ACTUALLY sold them to a Specific buyer, who know has them in his Account/s. They need to be traceable, that way.
So, stealing them would not add any verifiable characters to each Bitcoin, which should render them worthless to the thief, but still holding their value for the owner they were 'stolen' from.
IF he was SMART enough to keep them backed-up, then he'd still have his version of the digital docs, that have his code attached to them,

NO?