"I know that you know as well as I do how fast thoughts and associations can fly through your head. You can be in the middle of a creative meeting at your job or something, and enough material can rush through your head just in the little silences when people are looking over their notes and waiting for the next presentation that it would take exponentially longer than the whole meeting just to try to put a few seconds' silence's flood of thoughts into words. This is another paradox, that many of the most important impressions and thoughts in a person's life are ones that flash through your head so fast that fast isn't even the right word, they seem totally different from or outside of the regular sequential clock time we all live by, and they have so little relation to the sort of linear, one-word-after-another-word English we all communicate with each other with that it could easily take a whole lifetime just to spell out the contents of one split-second's flash of thoughts and connections, etc. – and yet we all seem to go around trying to use English (or whatever language our native country happens to use, it goes without saying) to try to convey to other people what we're thinking and to find out what they're thinking, when in fact deep down everybody knows it's a charade and they're just going through the motions. What goes on inside is just too fast and huge and all interconnected for words to do more than barely sketch the outlines of at most one tiny little part of it at any given instant. The internal head-speed or whatever of these ideas, memories, realizations, emotions and so on is even faster, by the way – exponentially faster, unimaginably faster – when you're dying, meaning during that vanishingly tiny nanosecond between when you technically die and when the next thing happens, so that in reality the cliché about people's whole life flashing before their eyes as they're dying isn't all that far off – although the whole life here isn't really a sequential thing where first you're born and then you're in the crib and then you're up at the plate in Legion ball, etc., which it turns out that that's what people usually mean when they say 'my whole life,' meaning a discrete, chronological series of moments that they add up and call their lifetime. It's not really like that. The best way I can think of to try to say it is that it all happens at once, but that at once doesn't really mean a finite moment of sequential time the way we think of time while we're alive, plus that what turns out to be the meaning of the term my life isn't even close to what we think we're talking about when we say 'my life.' Words and chronological time create all these total misunderstandings of what's really going on at the most basic level. And yet at the same time English is all we have to try to understand it and try to form anything larger or more meaningful and true with anybody else, which is yet another paradox.
"…the whole my whole life flashed before me phenomenon at the end is more like being a whitecap on the surface of the ocean, meaning that it's only at the moment you subside and start sliding back in that you're really even aware there's an ocean at all. When you're up and out there as a whitecap you might talk and act as if you know you're just a whitecap on the ocean, but deep down you don't think there's really an ocean at all. It's almost impossible to."
--David Foster Wallace, "Good Old Neon"