I have a very annoying habit of falling asleep while I am writing. That might seem like fairly good evidence I was not writing anything terribly interesting, and that's probably true. Here is the pattern: I place my laptop on top of my lap (it appears to be perfectly named, doesn't it) and then I start writing. At first, I feel full of energy and enthusiasm, and I write a paragraph or two, or maybe just a sentence or two, or in worse case scenario, maybe just one word or two. Then suddenly, without warning, my head dips down, my hands, which started out poised over the keyboard, waiting for further instruction, stop receiving any meaningful information at all and relax. It is possible my fingers are having a race to see which one reaches the keyboard first (I don't know because at that moment, I am unconscious of anything except the irrelevant dream I lapsed into) and if they are, my right ring finger wins more often than any others. As a reward for winning the race, the key he touches gets displayed over and over ad nauseum or at least ad ridiculoseum. Hence the two million 'l's of the title.
One time, a long time ago, when the computers and the word processing programs were not nearly as sophisticated as they are today, my ring finger typed so many of them, my computer got discouraged and thereafter refused to open that particular file. I can't remember exactly what it was about, and there's a good reason. It's tied up in l. The two million 'l's of the title might well be an under, rather than an over exaggeration.