Theft of the Magi
Permanent link to this comic: http://xkcd.com/506/
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[[Walking on a rocky desert.]]
So I'm stuck in this desert for eternity.
I don't know why. I just woke up here one day.
[[Still walking on a rocky desert.]]
I never feel hungry or thirsty.
[[Still walking on a rocky desert.]]
I just walk.
[[Still walking on a rocky desert.]]
Sand and rocks
[[Zoomed out on a rocky desert.]]
stretch to infinity.
As best as I can tell.
[[Sitting on a rocky desert.]]
There's plenty of time for thinking out here.
An eternity, really.
[[Drawing math in a rocky desert.]]
I've rederived modern math in the sand
and then some.
[[Sketches of various mathematical diagrams ... in a rocky desert.]]
Physics, too
I worked out the kinks in quantum mechanics and relativity.
Took a lot of thinking, but this place has fewer distractions than a swiss patent office.
[[Laying down rows of rocks.]]
One day I started laying down rows of rocks.
[[Pattern of rocks on a grid.]]
Each new row followed from the last in a simple pattern.
[[Zoomed out, pattern of rocks, shadow eclipsing it.]]
With the right set of rules and enough space,
[[Zoomed out showing pattern.]]
I was able to build a computer.
Each new row of stones is the next iteration of the computation.
[[Zoomed way out.]]
Sure, it's rocks instead of electricity, but it's the same* thing. Just slower.
*Turing-complete
[[Blank, with man.]]
After a while, I programmed it to be a physics simulator.
[[Black background, arrows pointing to stone representation of particle.]]
Every piece of information about a particle was encoded as a string of bits written in the stones.
00101010
00101010
[[Diagram of two particles interacting. Boiiiinnng.]]
With enough time and space, I could fully simulate two particles interacting.
[[Scene illuminates vastness of his current rocky desert location.]]
But I have infinite time and space.
[[Universe. Black background.]]
So I decided to simulate a universe.
[[Placing rocks on a grid again.]]
The eons blur past as I walk down a single row.
[[More detailed drawing of the rock pattern from a distance.]]
The rows blur past to compute a single step.
[[Two particles.]]
And in the simulation
[[Two particles, nudged a bit toward each other.]]
another instant ticks by.
[[Poof, mote of dust vanishing before man.]]
So if you see a mote of dust vanish from your vision in a little flash or something
[[Man holding two rocks, looking at one, with two at his feet. Oops.]]
I'm sorry. I must have misplaced a rock
sometime in the last few billions and billions of millennia.
[[Vastness of space.]]
Oh, and...
[[In a classroom, two people sit behind desks. One appears to be female, and paying attention like a good student. The other, the narrator, has his elbows on the desk and head in his hands, bored with the teacher at the front of the classroom, pointing a pointing stick at the chalkboard. The clock is at 9:55, just about to let class out into another full day of school. The teacher is balding, but he does not appear to be prematurely grey. ]]
If you think the minutes in your morning lecture are taking a long time to pass for you...
{{alt text: Every Roomba needs a dueling harness..}}