4 ms·
No, we haven't. See above. No we have. See above: While redshift goes all the way up to infinity, in terms of cosmological time, there's still only 0.4 billion
by cygx 6y ago
No, we haven't. See above.
No we have. See above: While redshift goes all the way up to infinity, in terms of cosmological time, there's still only 0.4 billion years between z=11 and z=∞, or about 3% of the age of the universe.
- horsawlarway 6y agoTo quote you above: > if our models are correct What is this whole discussion about? You're arguing a stance that assumes the model is correct in a discussion about the risks of assuming the model is correct. But trust me - our model is not correct.
- pdonis 6y ago> there's still only 0.4 billion years In terms of time, yes. I was thinking in terms of observable spacetime volume. Even though there's only about 0.4 billion years before z = 11, the scale factor increased by a huge factor during that time (a factor of 100 from CMBR emission at z = 1100 to z = 11). That's a lot of spacetime volume from which we have no useful observations.