this is one of those moments where i really, really feel like we are all characters living in Neal Stephenson’s Snow Crash
Still hands-down my favorite first-chapter of a book.
I give Stephenson credit for taking that guarantee to its logical extreme. And while I love the book, it's funny how basically none of the predictions in it came true. No computers that project images on eyeballs, no 'poon guns, no losers walking around scanning retinas with backpack-mounted lasers, and book features working payphone booths!
0. https://www.nytimes.com/1993/12/22/business/domino-s-ends-fa...
Actually, we have something close to that now:
https://www.kickstarter.com/projects/tiltfive/holographic-ta...
It doesn't use lasers though.
The tech is basically working, and they're ramping up to production this year.
And no, you can't just walk around arbitrarily, but you couldn't do that in the book either (you could walk out of range). Also, Stephenson didn't worry about just turning your back to the laser projector...