Here is the second comment she left on my blog:
“Science cannot demonstrate what I dreamed last night ( although it really happened) , nor if a mother loves her daughter, nor tell us how to live our lives, nor determine the value of something , nor tell us if Guns N’ Roses has betetr music than Soundgarden etc.
Science is great for APPROXIMATIONS of the natural world. Approximations-that is it. And it HAS LIMITS. A subject matter MUST be scientific ( natural- natural phenomena that is testable) for science to address it and study it.
There are many things that science is SILENT on.
Our greatest cream of the crop theories are ONLY APPROXIMATIONS- nothing more. Our greatest geniuses in the area of science were ONLY fog fighters struggling to understand the NATURAL world.”
Okay. Lets discuss the first paragraph, which is her first argument in this comment. This is a very old argument always put up by religious people and spiritual people alike, whenever they wish to displace science or show that it is not perfect. So I’m quite familiar with the argument, and have thought about it in-depth before.
I’ll address each piece separately.
Yes it can demonstrate what you dreamed last night, science is unable to do it at the moment, but there is no reason to suggest that we cannot do it in the future. There are constant improvements in science relating to reading brain signals, and our understanding of the brain is getting better every day. Every piece of evidence points to the fact that everything you think, everything you dream, it all can be found somewhere in the grey matter inside most of our skulls. Similarly it is quite easily able to demonstrate that a mother loves her daughter by observing the levels of particular hormones and activity of certain areas of the brain.
The next thing brought up is science and morality, the claim is made that science cannot tell us how to live our lives. No, it can’t, because morality is a value judgement at its core, and science only deals with facts. Morality however is not a fact of reality, so it can be excluded from this topic. It is worth pointing out though that once a judgement has been made on the value of things, science is perfect for advising morality, as it gives the most likely consequences of actions, so that one can judge what is the best course of action. Not smoking, for example, is a way science can advise you on how to live your life.
The last point brought up in this paragraph is that science is unable to make judgements on art, specifically that science cannot determine whether Guns’N’Roses is better or worse than any other band. I say that to the extent of FACTS, which are what is important to science, and to the current discussion of reality, science can help us. Surveys, the most basic of science, can easily explain to us which band is best in the eyes of the public. Now this may not prove that Guns’N’Roses is better than Soundgarden, but ‘better’ is not a fact, it is a personal opinion.
I’m going to address the next 3 paragraphs in the comment together, because they are part of the one topic. They simply say that science can only judge on natural topics, those which are scientific, and that science only makes approximations, never concrete statements. It finally states that Science is silent on a number of topics.
She’s correct to some extent, but lets look at what that means.
The first point, that science only makes approximations. That is true, but they are so much stronger than approximations. The theory of Gravity, for example, is ‘only a theory’, it is just an approximation of reality. But it hasn’t been proven wrong yet so if it is wrong, to the extent we can measure it, its right.
Science is naturally tentative, because it can never prove something completely right or wrong, but that merit doubt in the uncertainty. Like I said, the theory of gravity and the theory of evolution are ‘only theories’, but they are theories which have not a single piece of evidence against them, which is why they are still accepted theories. In the words of Einstein, “No amount of experimentation can ever prove me right; a single experiment can prove me wrong.”
This is one of my favourite quotes, because it sums up science perfectly. This is how science works. The theory is still accepted because no experiment has proved it wrong. In the case of most theories, they have come up against millions upon millions of experiments, all of which have agreed with the theory.
So the claim that science is just a “best guess” is a claim which demonstrates little understanding of the true meaning of the word ‘theory’ when used in scientific terms.
The second point, that science can only judge on natural topics, is also true. But she neglects to see what that means for her religious beliefs. Seeing as there is no evidence to date of god, and the creator of the universe is surely a natural topic (he created it all, so he must be observable somehow) it is a safe judgement to say that either: God does not exist OR God has no tangible effect on reality, therefore rendering him non-existant.
The final point, that science is silent on a lot of topics, is also true. Science doesn’t get involved in politics, morality, everyday lives, personal decisions etc., science can inform these topics on the facts, but it cannot ever become involved in these areas because a level of judgement is always required. This doesn’t mean science is wrong, it just means science cannot make judgement calls, because they are not facts. However god is definitely not a judgement call. Your religion maybe, but not the facts of God’s existence. On to the third and final Comment, which is in Part three of this blog post.