Re: Why are the James Bond stories named the way they are?
The officer clearly had reached a point, thanks to his now-ex-wife's shenanigans where the quantum of solace -- that last spark -- had been snuffed out entirely.
When the title of the movie was released Craig also mentioned this while talking to the press. The Quantum of Solace in a relationship and how if you don't have it then it's over.
"It's not that you can see the strings, it's that 40 years later you're still looking at them." - Steven Moffat
"This movie was big. Imagine how big it could have been with me in it?" William Shatner