Why do atheist try to deny the fine-tuning of our universe?
"Just Six Numbers." Martin Rees .
"Cosmic Coincidences." John Gribbin & Martin Rees
"The Cosmic Landscape". Leonard Susskind
"The Universe: a biography". John Gribbin
"The Accidental Universe". Paul Davies
"The Mind of God". Paul Davies
"The Emperor's New Mind". Roger Penrose
Paul Davies, George F. R. Ellis, Martin Rees, Lee Smolin, John Barrow, Frank Tipler, Frank Wilczek, Leonard Susskind, John Wheeler, Andrei Linde, Stephen Hawking, Luke Barnes, John Gribbin, Freeman Dyson, Thomas Hertog, Rodney D. Holder, and many other leading scientist say the universe is fine-tuned
Top atheist responses that try to get you to sit around in ignorance and not find an explaination for the fine-tuning...
1) if we weren’t here we wouldn’t notice it
Luke Barnes response to this by saying “What if someone asked "why are quasars so bright" and suppose someone else answered "because otherwise we wouldn't be able to see them". Well this answer is true, but it is no explanation at all and expects us to not try and find an answer to why quasars are so bright. It is the same thing with the fine-tuning. We need to seek out an explanation to why the universe is so fine-tuned instead of ignoring it.
2) The Universe is massive, and we can't live in a space.
Our claim isn't that this universe contains the most amount of life that you could fit in it. We're saying that if fundamental parameters were slightly different, there wouldn't be any life at all. Saying how horrible things are and will become doesn't change the precision of this fine-tuning.
3) Life adapted to conditions
We're not talking about what life can adapt too, that's not the issue here. The issue is what the universe needs to do before any form of life is even possible. The fundamental parameters are finely balanced on a razor's edge, and if they were slightly different you wouldn't have the ingredients for life.
We should note that the preceding arguments are not ‘God of the gaps’ arguments; it is advance in science, not ignorance of science, that has revealed this fine-tuning to us. In that sense there is no ‘gap’ in the science, The question is rather: how should we interpret the science? In what direction is it pointing?
5)How do we know this isn't the only way the universe could have been
Why would a universe that doesn't care about us (life) have constraints on its constants to make it life permitting? You would have to believe that a life-prohibiting universe is physically impossible, but a life-prohibiting universe is logically possible and there is no evidence suggesting otherwise. If the parameters couldn't have been slightly different, then that would be even more evidence for God.
6) The odds are 1:1 because we're here
The odds arn't 1:1. The cosmological constant alone makes the odds 1:10^120. We need to find an reason for why we got so lucky instead of trying to get people to not find and explanation. (The Cosmological Constant is causing the universe to expand at an accelerating rate, such that if the cosmological constant were larger by 1 part in 10^120 it would have prevented stars and galaxies from forming.)
So if the Multiverse exist it would need fine-tuning of its own.