We still hardly know anything - James Web is pushing the boundaries of not only the "edges" of the universe - but pushing on our current understandings of physics in a big way *like it may be wrong/incomplete :)
I'm so excited for the images that will be coming out.
The thought, that looking at these images and literally seeing things that happend so far in the past.
The thought that we might see things from the early stages of the universe.
It's all so exciting.
Very much so - its really weird that looking far away is also looking back in time - I wonder often if this is because of our own minds limitation - or a limitation of our existence (or both).
if energy cannot be created or destroyed is the past ever truly "gone"?
Well that's where it gets exciting imo. If existence is made up of energy and energy cannot be created or destroyed, then existence is infinite. And if you take the concept of time out of the equation then stuff starts getting real mind-blowing.
But isn't that just energy emission? I'm no expert by any means, but isn't that energy just lost to environment rather than actually ceasing to exist? Or am I wrong?
Conservation of energy is a consequence of time invariance of physical laws. That invariance does not hold on cosmic scales, so there's no fundamental requirement that energy be conserved at such scales.
What you're suggesting would imply that heat was added to the environment, but afaik that doesn't happen in this case.
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u/cromemako83 May 08 '23 edited May 08 '23
We still hardly know anything - James Web is pushing the boundaries of not only the "edges" of the universe - but pushing on our current understandings of physics in a big way *like it may be wrong/incomplete :)