Tangential, but I've always wondered why in English 10^9 is one billion. 10^6 is one million. Twice as many zeroes should be one billion. Three times as many, one trillion, etc.

Hence, ouroboros.

In Spanish they say "Octavos de Final", which literally means "Eighths of Final". I would probably say Eighths Final. And following that logic you would get Sixteenths Final, Thirty-seconds Final, etc.