Oh yea, I hadn't seen it expressed that way. More like a percent every 140 MY, but yes.
Eww...Billion I understand to be 10^9. In European nomenclature the same number is called a milliard. A billion in European nomenclature is 10^12. I wrote this to appease uwot who speaks European English. He breathes European English. He thinks in European English. He plays soccer in European English. d-:
Unfortunately the EU system makes more sense. We (west of Atlanticans) count powers of 1000: Billion is a thousand cubed, which makes no sense given the prefix Bi meaning two. Trillion means 1000 to the fourth.
EU uses powers of a million, so a billion means literally a million squared, which has to be the more original meaning of the word. It's the Americas that bastardized those terms to the ones I've been using in my posts, just we bastardized the name 'football' to some sport where the feet hardly ever come into play. It's not rugby, but at least more related to it just like baseball is related mostly to cricket. Oh, and we have the nards to call our baseball championship the 'world series' despite not inviting say the Jap and South American teams all of which play a pretty competitive game.