This is one of those things like cellphones on airplanes or digital books where I feel like the future is going to be a big headache. Imagine a whole wall of this.
Forget our attention spans for a second--honestly, is the human eyeball built to handle so much flashing and light and movement as the modern world keeps stepping it up? Like physiologically, what does it do to us? Are our brains going to look different when they lift them out of our skulls in ten, twenty years, new wrinkle patterns in the occipital lobes?
Or will we just become increasingly skilled at not seeing? Selective attention, honed pinpoint-sharp.
I was going to speculate it's going to be weird for writers and anyone else who relies on nonspecific observation. But personally I am already zoned out much of the time, too preoccupied with whatever's in my head to notice, say, the chair I'm about to walk into.