I’d be more careful with my phrasing. “Just happened to be terrestrial”? There are assumptions loaded into that wording. It’s least logically possible that only terrestrial creatures could develop natural science and technology and thus be able to understand their place in the universe and their own origin. And it’s not just logically possible; there is strong evidence for it. I recommend to you Denton’s book Fire-Maker. I know you won’t, but if you did, you’d find plenty of evidence to render your expression highly questionable.
First, as already stated, absent extreme atmospheric pressure, high temperatures would boil the water away. I would like to know how advanced life (not just a handful of microbes) could evolve without water. Second, as already stated, if we postulate high atmospheric pressure to keep the water on the ground, it’s not clear that a number of other factors would not be affected. But to be clear, I’m not arguing that it’s impossible for life to evolve in a high-temperature, high-pressure atmosphere. I’d just like to see some scenarios. If anyone could provide plausible narratives about how that would work, it would be you. I remain open to your suggestions.
One of the difficulties here is that you are seizing on one thing I said (on my own account, not claiming it was Denton’s point), and pressing it. I’ve tried to indicate to you that in Denton’s books, he takes great pains to show the interconnectedness of the conditions that promote life and intelligent life. All I’m saying here is that it strikes me that if you “rescue” water by postulating super-high atmospheric pressure, it’s unlikely that there will be no other significant environmental changes connected with that high pressure. You don’t seem to think that those other changes could possibly have a negative impact on the rise or development of life.
I’m uncomfortable with discussion based solely on single points or solely on abstract considerations. What I like about Denton’s books is their massive concreteness, their detailed discussion of the nuts and bolts of the phenomena of light, vision, movement of elements inside the earth, cycles of carbon compounds, etc. I don’t think the force of his line of argument can be appreciated without reading at least one or two of his books, and seeing his argument for the tight interconnection of conditions. This is why I vastly prefer discussions in which everyone in the discussion has read a book in common, over discussions where everyone “wings it” by arguing against isolated statements. I know, however, that I’m outnumbered here regarding that preference.
I could not give reasons anywhere near to your satisfaction without reproducing large chunks of text from Denton’s books, and as I don’t have pdfs, but only paper copies, I’m unwilling to spend long hours typing from the books, or scanning pages from the books, every time someone here raises an objection. I can guarantee you that he gives extended argument for the interconnection of things and that he makes use of data that I think you would not for the most part contest. But I don’t have the stamina to reproduce pages at a time.
Again, I am not saying that it’s impossible that intelligent life could occur under drastically different conditions. I do believe it’s unlikely – but I can’t hope to persuade you of even that if you are unwilling to read some of Denton’s books. I know from experience here that arguing isolated points, one by one, never produces any real learning, but only disputes over those single points. And it’s of the essence of Denton’s line of argument that everything is viewed synoptically, not as a series of hit and run claims. I’m sorry if this is not satisfying to you, but given the nature of the author and books we are talking about, I don’t see any way around this communication problem, other than for you to read some of the books.
I’m not trying to dodge or avoid anything; I honestly believe that for certain kinds of book, where the argument is cumulative rather than a series of scattershot “evidences,” the argument of the book needs to be discussed as a whole. Indeed, I would say that the Origin of Species is such a book – which I why I read it all the way through, more than once, before I commented on it or criticized it. Other books of this type would include The Technological Society, by Ellul, Small Is Beautiful by Schumacher, and The Closing of the American Mind by Allan Bloom, plus a large number of the classics of philosophy, political science, linguistics, etc.