The simple question of how much information has already been lost is difficult to answer.
Thus, information has not been lost, only changed; which is fine by all physical laws.
If it were written 20 years from now, much primary information would be lost.
First, I believe that we are in the process of losing important information.
Color cannot be seen in images made by these methods, so some information is lost.
In the process, much information, and therefore picture clarity, is lost.
This helped the central government keep track of its subjects, but it lost local information.
After this, information is either committed to long term memory, or lost all together.
We can save these records to disk in any order, and no information will be lost.
The problem with this approach is that it loses information.