According to our current understanding, the universe is expanding... it is often said that every galaxy is moving away from us (I'm assuming that isn't true for galaxies in our local group), and it's also often said that the farther a galaxy is away from us -- the faster it moves away from us.
We also know that light has a finite speed, so when we look at those far away galaxies, we see them as they were a long, long time ago.
But (1) if the oldest galaxies are moving away faster, and the younger galaxies are moving away slower, then wouldn't that mean that the expansion of the universe is slowing down?
But (2) when I'm thinking of an expanding 2d sheet of paper with dots (scaled up in both directions), then it makes sense that the farther galaxies would move faster away from our perspective.. (although if the universe were expanding at a constant rate, we would still see the farther galaxies moving faster from our perspective, but I'm assuming that it has been accounted for, and that the galaxies move even faster than that).
So... why is my first "but" incorrect? Something tells me that I'm looking at it at the wrong way, but I can't figure it out xD