With scientists having recently found the oldest known galaxy in our universe (13.1 billion years old, which disproves the Biblical creation story completely, new earth idiots!), it's painfully obvious to me that we are able to actually see back in time (if you could somehow zap yourself there in the blink of an eye by some kind of worm-hole means [you obviously can't race there faster than the speed of light, which would still take you billions of years], it means you could probably also time-travel technically). So my question is this: if we're seeing these 'infant galaxies' that formed billions of years ago as if it's happening right now, is it possible that if we developed technology to see even further into the universe (or 'further back in time' as it may be), that we may be able to witness the immediate aftereffects of its birth? The universe is 13.7 billion years old; 13.1 is awfully close to it. I'm just curious and wondering what our cosmology-savvy members have to say about our ability to someday witness the cosmic dawn.
Think of it in terms of location. Say if you were in China and I was in NY. To describe each other's location we might trace an imaginary line between each other. A set of 2-dimensional co-ordinates. If as observer on the moon were to describe it without(for the sake of argument)the planet in the way as if we were in space, he would need a third dimension of spatial co-ordinates to place us in space relative to him. This is the fun part: neither of those observations take "time" into account, the fourth spatial dimension(which is the part we simply cannot perceive as a dimension, and is the part I almost give up at). At a mere quarter million miles it isn't a factor in a perceptible way, but at thousands or millions of light years, it's quite significant.
It's kind of impossible to experience time as a dimension in the same way we perceive up and down, and almost impossible to accept practically.
Now they claim there are even more dimensions. The latest I think is 11 where the math starts working better. Don't ask me, I'm just recalling what I read in one of Brian Greene's books, he's a little better at trying to explain this for non-physicists than Hawking is.
Richard Feynman said he never completely understood General Relativity. He might have just said that to make us ordinary mortals feel better. Worked for me.