Surely :)
I learned the basics of this from Joe McDonald's Safari book.
You are using high speed drive and working at 1/1000 sec. (It makes the math easier :)) The bird does something interesting so you hold the shutter button down for exactly one second. How many images do you make in one full second if you are firing away with a ten frames per second camera? That's easy: ten. That's why it is called 10 frames per second, you make 10 frames in exactly one second.
Okay, now, how many 1/1000ths of a second are there in one second? That's easy: 1/1000 sec. means that you have divided one second into one thousand tiny parts. How many parts? 1000. So there are 1000 thousandths of a second in one second. As we saw above, you have capture only 10 of those one thousandths of a second. So you have captured only 10 of the 1000 instants or possible poses (that occur in one second. 10/1000 = 1/100 or 1%. If you have capture only 1% of the possible poses then you missed 99%.
That math is only in an ideal world. First off when you are working in AI Servo AF you do not get 10 fps, more like 7 or 8. And if your shutter speed is less than 1/1000 sec. then you will be missing more than 99%. If you are working with manual focus or in One-Shot at a shutter speed of 1/2000 sec. then you would get 2% of the possible instants thus missing only 98% of the possible poses.
Any questions? :)
It is ironic that folks using high frame rate cameras and fast shutter speeds and holding the pedal to the metal think that they are getting everything :)