3 ms·
We're equidistant from the edge of the observable universe in all directions. One would think that puts us at the center. (But the same is true for someone sit
by analog31 2y ago
We're equidistant from the edge of the observable universe in all directions. One would think that puts us at the center.
(But the same is true for someone sitting on another planet).
- ajross 2y agoSome of that is a semantic thing about how one defines "distant", but this is not really required by GR. In fact the insight behind the emerging "timescape" theories is that the universe isn't flat or homogenous on large scales and that different regions have expanded at different rates. Their "edges" are equally old, but may not be not equally "distant".
- adolph 2y ago> equidistant from the edge of the observable universe in all directions That seems like an example of "streetlight effect." The streetlight effect, or the drunkard's search principle, is a type of observational bias that occurs when people only search for something where it is easiest to look. https://en.wikipedia.org/wiki/Streetlight_effect https://en.wikipedia.org/wiki/Streetlight_effect
- jordanb 2y agoIt's not. Rather it's that every observer in the universe is at the center of their own light cone. The fact that we can not observe anything outside our light cone is well understood.