Malcome Gladwell (the guy that wrote The Tipping Point) has a new book out called “Blink.” The NYTimes just ran the first chapter of the book in their cunningly-named First Chapter section. Fersure hit this link to Blink on Gladwell's site where he outlines the broader themes of the book.
I like it. I've spent my whole career being accused of jumping to conclusions (so I've gotten better, although not great, at keeping my mouth shut until a little supporting data rolls in). I think a lot of us have run into the same problem. You know what the situation is, but if you blurt it out, you're likely to get beat up by people who need lots of supporting facts.
Maybe you've just got a really rich set of experiences that your subconscious is taking advantage of. Perhaps you're just good at “blink.” I like this book's premise because it reminds me to value those 2-second blinks, and gives me a way to rationalize those leaps of cognition to other people.