Tech journalism, these days, is the art of covering a topic (or a product) the moment it occurs — or even before it occurs. This isn’t anything new — if you’ve seen any old black-and-white films that deals with newspapers, you know the images of reporters pushing each other aside to cover a story before anyone else, and newsboys screaming, “Extra! Extra!” as they tout the latest headlines.

So I wasn’t surprised that headlines from the CES trade show in Las Vegas have already hit, covering products by companies whose staffers are, even as I write, still working to get their booths ready for the opening of the show floor on Wednesday, or practicing for press presentations that they will present today and tomorrow. Anyone attending the show will have been hit by a flurry of PR notices, urging attention to the latest virtual reality, automotive, smart home, fitness and other products that will be shown during this week. (Right now, those four topics appear to be at the top of the CES news heap.)

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