/sci/ - Science & Math

>>14842939
If time travel is real and doesn't leave physical evidence of its use then it basically allows "a wizard from the future did it" as a cause for any effect. This makes scientists very angry.

>>14784885
For context, Carmack was most famous for writing this into Quake III Arena which was an extremely compact bit of code for the massive amount of performance gain it provided (and yes, I'm aware of all the debate about how he didn't really come up with this himself but that's not the point):
float Q_rsqrt( float number )
{
long i;
float x2, y;
const float threehalfs = 1.5F;
x2 = number * 0.5F;
y = number;
i = * ( long * ) &y;
i = 0x5f3759df - ( i >> 1 );
y = * ( float * ) &i;
y = y * ( threehalfs - ( x2 * y * y ) );
return y;
}
So it makes perfect sense someone who became rich and famous from like 10 lines of code would be biased towards the idea there are susprisingly hyper-simple solutions to problems most everyone else is convinced will require gigantic piles of brute force.