>retrieving that sort of material may simply be impossible. Bull, it may be difficult and expensive, but calling it impossible is just excuse-making; if it is

>retrieving that sort of material may simply be impossible. Bull, it may be difficult and expensive, but calling it impossible is just excuse-making; if it is not worth it to recover the data is really a different matter than whether it is possible. When the data has actually been lost, then it's impossible.