A question about life, the universe, and everything

Do regular people know that we're pretty sure what the origin of the universe is? Like, not the Big Bang - that's observational fact - but rather, the origin of the Big Bang and everything that we see and know? Do you realize that we don't need God as even a deistic first cause anymore (though we may need him for other stuff, as I'll explain later)?

I'll explain it all in the next journal post, but I'm curious what non-physicists have to say on this. Do you know that we know, and do you want to know?

(If you're curious and want to Wikipedia it already, I'm referring to Cosmic Inflation, which is a string-theoryless, Hawkingless, and thus very successful model)