Ra's numbers

[Billy]

Who created the billions of planets estimate and how?

I just did a quick google search to be honest. Come to think of it, Ra may have meant 67 billion. That fits much better. Its probably also worth noting that there is obviously more than one planet per star. If there are say 100 billion stars, and we say on average that there are 3 planets per star, that would mean 300 billion planets. One fifth of that is 60 billion. So maybe Ra did mean a billion rather than a million. Who knows.