Imagine a 1x1 pixel image. For simplicity's sake, we're just using black and white.
Let's make all possible images using black and white in a 1x1 pixel image. So that
one pixel is either black or white, 2 images. Now imagine there's a 1x2 pixel image
in black and white. There are 4 possible images.

Now these images can't really show anything.

Let's blow up the image to 100x100, in just black and white, there are 2^(100x100),
or 2^10,000, or roughly 2 followed by 3,010 zeroes images. In that collection of
small images, there is a closeup of every human's face who has existed, exists, or
will exist, but there's not much detail since it's just a black and white thumbnail.

If we did an image in 640x480, in true color, there are 16,777,216^307,200 possible
images (more than the number of particles in the universe), but amongst the trillions
of images of random static, there is an image of everything. In one of those random
images, there is a picture of everyone on this forum chasing Danny Tanner while
riding a moose during World War II. There is a picture of your grandmother using a
strapon on Jesus while piloting a dirigible. There is even a screenshot of this post.

-Timo, SA Forums