Smaller haystack,Easier to find the needle.

Finding it randomly would be the equivalent of locating a needle in a haystack, blindfolded, wearing baseball mitts.

And also, there's way more cells in your brain than the number of straws in a typical haystack.

This really was a needle in a haystack sort of search, so she asked everything she could think of.

This is way more difficult than, let's say, finding a needle in a haystack, because at least, you know, the needle is still something you can physically put your fingers on.