AR is the Pursuit of Eliminating the Latency Between Atoms and Bits

It's been almost 4 years since I first got involved in the augmented reality community, and 2.5 years of actively blogging about it. During those years I've seen many try to define what's AR and even more importantly what's not. Many arguments whether GPS based, projection based or webcam based AR should be regarded as augmented reality, and should we dismiss roadsigns and maps as "not AR". Four years, and only lately I came up with a definition the pleases me (and would be happy to hear your thoughts).

Augmented reality is the pursuit of eliminating the latency between atoms and bits.

let's break it down.

Atoms and Bits - I think most of you agree that augmented reality is about delivering digital context (bits) to real world locations and objects (atoms). There are many ways to do so - using visual overlays, olfactory signals and haptic devices. Even within visual overlays there are many competing and complementary methods to augment the world. For me, both head up displays and roadsigns were at one time or another (or are still) augmented reality.

Eliminating the latency - Humans are lazy by nature and want to do more, faster and with less effort, be it physical or mental. That's how technology evolved, and that's how AR evolves. At first we needed to use maps to find our destination, which required us to identify our current location on the map (which always falls between the folds) and plan our route. This takes time (latency) and effort (latency incurred by the brain). With GPS we greatly reduced that time. With "windshield AR" we can reduce it even further, eliminating navigation mistakes that, you guess it, make us waste time.
Eliminating latency has another interesting outcome. It means that AR is bound to be peer-to-peer based or highly distributed. If you live in New York you don't have the patience to access an AR server in Seattle, a mere 100ms away, if the atoms near you may change their position by then (or you just moved your head).

Pursuit - This alludes to the fact that augmented reality is not a thing but a movement. Methods that were once considered AR will not be in the future (e.g. maps). If five years ago you need to Google restaurants in your vicinity to find a good place to lunch, a process that took a lot of time, you can now use an AR browser. But using Layar (or any of their competitors) hasn't fully eliminated the latency. You need to get your phone out of your pocket, and use your brain because the positioning of labels is still not perfect. Head up displays (or contact lenses) with high resolution positioning will make mobile phone based AR look antiquated like paper maps are today, because they have the potential to minimize latency to the speed of light and the speed of our brain. Enter the brain implants and only the speed of light will be a factor in the AR game.


Joey1058 said...

I never considered roadsigns as AR. Interesting concept. They've always been just "there" and in the background noise of physical reality.

You mention "peer to peer". This would be/absorb "internet of things". Everything becomes a node. Considering that everything will not always be online, latency experienced will vary, but never be eliminated.

"AR is not a thing, but a movement." Also an interesting concept. Ideally, AR will become a background noise as well. Acknowledgement of data feeds becomes an afterthought. Volume of data received is determined by the individual, and not by the feed providers. For now, the buzzword being "opt-in".

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