To Infitity and beyond

We got a new coffee grinder yesterday. My wife like to make espresso at home and our old grinder will not grind the coffee fine enough to do that. So the new one showed up, and much to my delight, it's called the Capresso Infinity Conical Burr Grinder. This is an impressive word mashup, and though I'm not sure where to put the emphasis in the name, I'm intrigued by the whole infinite aspect of it.

Does that mean that it can grind the beans infinitely small? What would that even look like? Would I be able to see it when I spill it on the floor. Do I need infinitely smaller holes in the brewer to keep the grounds from seeping through into the coffee? I'm dubious, because the grind selector merely twists to allow you to select from "Coarse" to "Very Fine." With a name like Infinity, it would seem like you ought to be able keep turning it in either direction for as long as you wanted, forever even.

I decided to look in the instructions for clues, but as usual, none were to be found. I gotta say, not even the warnings we very dire or (therefore) interesting. It seems like the less dangerous the product, the more drastic the warnings. Maybe because to do dangerous things with something that's not inherently hazardous requires more energy and creativity and with as a result be more potentially catastrophic.