Sure, I'll take a stab at it. Warning - oversimplification ahead!
The universe being flat means that distances are the same no matter where you are and what direction you measure. If the universe isn't flat, then it's stretchy in one direction or another. For example, a foot (measurement) left to right might be shorter if it's right in front of you than if it's far in front of you. This is silly; it's nonsensical in a flat universe. But, if you accept the premise, then in order for this to work out, space has to "bend" in some cockamamie dimension. Imagine it with a flat piece of plastic: pick a point and mark it. Then apply a heat gun that expands the plastic near where the mark is, but doesn't do anything further away. As the plastic sheet expands, it has to go somewhere
, and it bulges up. If you do this "everywhere", you can make a ball, or a saddle, or some other shape.
Often this is illustrated using angles, but "stretchy space" is a more fun metaphor.
Now, it turns out that space isn't stretchy like that. This is odd, because as the universe expands and evolves, any little stretchiness should get amplified. Why this is so is buried in math I don't know, and not explained in the video. But since the universe looks flat now, it must have been very
flat at its inception.
kept imperfections in flatness from building up. That's the inflation thing.
Inflation takes a small piece of stretchy space, and blows it up very quickly, without amplifying imperfections in flatness. A small enough piece of almost anything
is going to be pretty flat, so we end up with flat space in the end, sidestepping a lot of the problem.
WARNING: HAVE ICE CREAM READY BEFORE OPENUNG
Well, we now know that the Voldeframe is really a new beginnUNG! It is to be celebrated. Without the Voldeframe, there would be no TaT, TbT, TiT, or any of the other awesomeful creative works going on even now.
It's my birthdip... a bad day
I think it was a Good day - it resulted in you. Another day to celebrate! (And yeah, you're getting older. It beats the alternative!)