[filipedeschamps]

Is that "FLUID" written in ascii in the beginning of the video the source code of this fluid mechanism?

Because he starts with a "cat endoh1.c" to show it's content and it's a valid C program.

[ptaipale]

Yes.

Now, in the spirit of personal computer magazines of 1980's, you should pause the Youtube video, type in the source code from the screenshot, and run it. Good luck.

(Us wimps, we get it here: http://www.ioccc.org/2012/whowon.html )

[hellomrjack]

Yes, it compiles in to the solver and then can use its own source as the initial state. The guy who writes these (this is one of his many entries to IOCCC) is a genius!