He didn't come up with it, he was describing the thought process that made some astronomers around the early 1900s think that Venus could have life on it, possibly even dinosaurs. He has a whole chapter in one of his books where he talks about things like that that scientists thought were reasonable but turned out to be dead wrong.
No sometimes history is written by the literate. Like the vikings absolutely raped the monks and **** . But vikings cant write in anything but Runes until they accept yeshua as their lord and saviour in around 1200 AD. So the monks with gud handwriting in latin write about the oppresive CIS ******** vikings and thats just about all we have to reference in viking literature until around 1100 when the Icelanders decide to be gud and write their icelandaboks or literally iceland book with stories and sagas and such, most of which are in the present but some of which detail the past of Scandinavian life, although most historians now understand that Sagas are very loosely based on myths and things.
well, ok, but history is mostly written by empires...and empires like to look good in the eyes of their citizens, so they dont mind amending some "facts."
Well technically I can conclude it as false. If I were to stand in a room facing the only doorway, and backed into a wall, I could safely assume, given the laws of conservation that any densely packed Hitlers could not have vanished.
Observation: "I live and breathe, but don't know how and why. I see lights in the sky, especially in the night, and there's a huge shining fireball in the sky during day, and I don't know where they come from, etc etc."
Conclusion: "It's God's creations and God created everything, and everything has it's reasons, but some God might only know, because God is perfect and humans are not"
I'm not even religious, but saying there were no observation or rational thoughts behind religion is pretty stupid