Inflation 7

Ok today we tackle the flatness problem, which is also solved by inflation (supposedly). It’s actually really, really simple when you take all the math out of it. Ed’s text has a considerable amount of math in it but I don’t know where it was derived from so I’m not gonna go there. But there is a simple explanation, and here it is. Inflation just stretches out the universe to its current flat state. It’s like if you have a balloon that got stuck behind the TV after the birthday party a month ago; ya know how it’s all wrinkly and bunchy. Well, if you take that balloon and somehow manage to untie it and blow it up some all the wrinkles will come out of it. This is what happened with the early universe. It may have been all wrinkly at the begging but then it got stretched in inflation and became flat again. That’s all there is to it (ok not really, there’s a lot of math but…we can worry about that later…maybe).