Self-Organized Criticality 

simulated sand pile is one of the best clips on youtube

This was a very cool video, and thanks for making everything so easy to under-sand 😎

Hey, I note that the upper powerlaw appears to contain all sizes that are multiples of four, and the lower curve contains all the others! Could this be related to the fact that one avalanche moves four grains? If so, could it be that your code only returns a non-multiple-of-four size if a grain falls off the edge (confirming your hypothesis that it's an edge effect)? I wonder if you'd see just the upper powerlaw if the x-axis were "number of local collapse events" (i.e. one count per collapse instead of four).

Do you have references for the papers from Chicago and Oslo? Would be greatly appreciated.

Impressive work.

Is there away to link two of these applications together? For example: predator spread and lifeform flight or extinction? So as the predator adds his 4th grain to a stack there could be a link to producing a 4th grain „spontaneously“ in prey behavior also, which would e.g. drive the lot of prey to another area? Maybe under certain circumstances at that point then even 3 grains of prey could be enough to evalanche. best regards and thnx for the video

Nice work, well explained!

The great San Francisco earthquake was in 1906 :P love the visuals, great vid

6:53 what if one horn is caused by the little avalanche and the other caused by the big avalanche?

Angle of a pile is it same always? Can it be connected with other phenomena in nature and in science?

Thanks - nicely done

Hi Andrew! Love the video. :) I'm a high school student interested in precisely this topic. I was wondering if I could contact you and ask you a few questions - if you have the time. I would greatly appreciate it. Thank you!

Appreciate the video. One thing, perhaps for future videos. It’s pronounced: aww-tom-a-tawn. It kept producing a dissonance within my mind, given the semantics associated with “automation” are meaningfully different.

What’s with the impurity of your sand buddy?

how you did the simulations? is it in C/C++ or some advanced software?

Hey did you use my project to help you? If so, that's awesome! If not, incredible coincidence as your figures look almost identical! You can see my writeup here: github.com/blairg23/Bak-Tang-Wiesenfeld-Sandpile-Model/blob/master/Writeup/sandpile.pdf

i personally believe in divinity and creation but thanks for this video i enjoyed it