- #1
Jozsef
- 24
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Imagine that I draw a sightline from Earth (E) to the most distant observable cosmic structure, called for simplicity X and presumed 13,7 billion light-years away. Imagine that by magic I can instantaneously transport myself on to that structure. If sitting there and keeping looking further along the E→X→ direction, will I then see the rest, the hidden part of the universe for again 13,7 billion light-years ahead?
The question might seem stupid but is inspired by the consensus in cosmology that every observer, wherever in the cosmos, feels himself as the center of the Big Bang.
Is it also reasonable to assume that an observer on structure X and looking in the opposite direction ( X → E→) will observe our Earth as the horizon of his observable universe? Many thanks, Jozsef
The question might seem stupid but is inspired by the consensus in cosmology that every observer, wherever in the cosmos, feels himself as the center of the Big Bang.
Is it also reasonable to assume that an observer on structure X and looking in the opposite direction ( X → E→) will observe our Earth as the horizon of his observable universe? Many thanks, Jozsef