What is the most advanced computer program?

[nether]

https://www.quora.com/What-is-the-most-advanced-computer-program/answer/Joey-Kim-13?srid=uBgm&share=1

[mglz]

    i  = 0x5f3759df - ( i >> 1 ); // what the fuck?

Indeed. I hope there's some omitted documentation for this. Does anybody know how this works?

[ColinWright → mglz]

https://news.ycombinator.com/item?id=15026917

[mglz → ColinWright]

Thanks :)