“One of my favorite philosophical tenets is that people will agree with you only if they already agree with you. You do not change people’s minds.” –Frank Zappa
One of the most difficult things to talk about, for any self-respecting scientist, is politics. Like all of you, I have my preferences, my opinions, and my vision for what a better world would look like. I’m also well aware that if I talked about all of them, there probably wouldn’t be a single one of you out there who agreed with everything I had to say.
And it would be completely unreasonable to expect you to. After all, our politics are informed by our experiences, our ideals, and the limited amount of information we have at our disposal. But there are people out there with more information than you on pretty much every topic, political or otherwise. When it comes to those topics, if your political opinions aren’t informed by not just an expert, but by the consensus of experts in that field, then your politics cannot be said to be based in science.
And that’s what I want you to consider today.
I like to fancy myself an above-average adult as far as being informed in general goes, and in particular about a plethora of aspects concerning science, health, and the environment. But the reality is that — with the sole exception of physics, astronomy, and cosmology in particular — I am simply nothing more than a somewhat informed non-professional. Because you know what I am (and am not) an expert in, you might lend more credence to my opinions on spaceflight, on superconductivity, or on variable stars than you would to 99% of people, and that’s reasonable, I suppose. But that’s not my true area of expertise; there are likely thousands if not tens of thousands of people worldwide who have more (and better) information than I do about those topics.
But you might still trust what I have to say.
It shouldn’t be because you think that I know better than the thousands or tens of thousands of people whose expertise lies in those particular sub-fields. I don’t. You should trust me because you think that:
- I know enough to understand the details of what’s going on, how it’s happening, and I’ll be able to break it down in an understandable way for you, but also because
- You trust that I’m going to inform myself as to what the scientific consensus is on an issue, and that’s what I’ll present to you as a scientific truth.
So why is it, then, that we shouldn’t demand that same level of rigor — when it’s available — when it comes to all of our information?
If we’re talking about an environmental issue such as the acidification of the oceans, why wouldn’t you immediately wonder what the scientific consensus among marine biologists or NOAA was?
If we’re talking about the theory of evolution, why would you trust anyone’s opinion over the consensus of evolutionary biologists?
And if we’re talking about the origin of the stars, planets, and galaxies in the Universe, why would you dream of trusting anyone other than theoretical cosmologists, the people who study this in gory detail for a living?
Yes, there are some people who don’t do this, but the vast majority of you know that if you want to inform yourself about scientific truths, you need to go to the body of scientists who study that particular question or field as their area of expertise. And you don’t want to just pick out a handful of fringe scientists who disagree with the consensus; if there is a consensus, that’s what you go with. If the consensus model turns out to be wrong, incomplete, or otherwise inaccurate, science will figure it out.
So we want to go with the best that we know when it comes to making informed policy decisions, right?
If we want a better society, we can’t pick-and-choose when we do this. We should be listening to the science even when it offends our sensibilities or preconceptions. And — as I’ve learned the hard way — science does this all the time.
But so does health and medicine.
I was disappointed, but not surprised, when I did my own research into the fluoridation of drinking water and its effect on both dental and medical health, to find that fluoridation is safe and effective, and also to find that not only did my city fail to fluoridate our drinking water, we failed by more than a 3-2 margin in voting.
Here’s the thing that I don’t get. I talked to a doctor I knew and trusted once, someone who was a practicing M.D. for more than 30 years. Over that time, this doctor had seen thousands upon thousands of patients, and kept up impeccably with the latest research and developments in the field. “How can I apply the latest findings to my practice” was a question this professional often asked. And while keeping up with the literature, sometimes there were articles or studies that suggested that the recommendations of the CDC — the Center for Disease Control — might not be the optimal recommendations.
Sometimes those recommendations did actually change over time, most of the time they didn’t. I asked this doctor if he ever recommended anything contrary to the CDC’s recommendation for patients in general, and he got very serious. Under no circumstances, he said, was he or any other M.D. he knew qualified to even be a member of the CDC, much less challenge their recommendations. He explained to me what it took to become one of the professionals involved with the CDC, and how that would be a lifetime’s worth of work in and of itself, and that wasn’t how he chose to spend his life. But there were people who did, and making the CDC recommendations was their job; they were the experts, not him. Furthermore, he said, any doctor who didn’t follow the CDC’s recommendations was a doctor who simply wan’t doing a good job, and if I cared at all about my own health, public health, and following medicine’s best practices, I would never frequent or recommend a doctor who held otherwise.
Now, that doesn’t mean that science and scientific truths should be the only consideration when it comes to crafting policy. The Earth is getting warmer, the climate is changing, and humans are the cause: these are scientific truths. But that doesn’t mean that Al Gore’s cap-and-trade is the best policy, or even a legitimate solution. GMOs are a safe technique for modifying crops that we eat for food, but that doesn’t mean that our agricultural system and business/farming practices are just fine, and that they don’t need to be overhauled. And vaccinations are not 100% safe, but as far as we understand public health, everyone who doesn’t have/need a medical exemption should receive the full CDC schedule of vaccines on time; they save literally tens of thousands of lives per year, and religious/personal-choice exemptions kill people, period.
More science, please, all the time, even when it disagrees with my own politics. Because as science learns and as better and more fundamental scientific truths are revealed, I want that understanding incorporated into my society’s policies. So should you.