The afterlife

Dec 1 JDN 2460646

Super-human beings aren’t that strange a thing to posit, but they are the sort of thing we’d expect to see clear evidence of if they existed. Without them, prayer is a muddled concept that is difficult to distinguish from simply “things that don’t work”. That leaves the afterlife. Could there be an existence for human consciousness after death?

No. There isn’t. Once you’re dead, you’re dead. It’s really that unequivocal. It is customary in most discussions of this matter to hedge and fret and be “agnostic” about what might lie beyond the grave—but in fact the evidence is absolutely overwhelming.

Everything we know about neuroscience—literally everything—would have to be abandoned in order for an afterlife to make sense. The core of neuroscience, the foundation from which the entire field is built, is what I call the Basic Fact of Cognitive Science: you are your brain. It is your brain that feels, your brain that thinks, your brain that dreams, your brain that remembers. We do not yet understand most of these processes in detail—though some we actually do, such as the processing of visual images. But it doesn’t take an expert mechanic to know that removing the engine makes the car stop running. It doesn’t take a brilliant electrical engineer to know that smashing the CPU makes the computer stop working. Saying that your mind continues to work without your brain is like saying that you can continue to digest without having a stomach or intestines.

This fundamental truth underlies everything we know about the science of consciousness. It can even be directly verified in a piecemeal form: There are specific areas of your brain that, when damaged, will cause you to become blind, or unable to understand language, or unable to speak grammatically (those are two distinct areas), or destroy your ability to form new memories or recall old ones, or even eliminate your ability to recognize faces. Most terrifying of all—yet by no means surprising to anyone who really appreciates the Basic Fact—is the fact that damage to certain parts of your brain will even change your personality, often making you impulsive, paranoid or cruel, literally making you a worse person. More surprising and baffling is the fact that cutting your brain down the middle into left and right halves can split you into two people, each of whom operates half of your body (the opposite half, oddly enough), who mostly agree on things and work together but occasionally don’t. All of these are people we can actually interact with in laboratories, and (except for language deficits of course) talk to them about their experiences. It’s true that we can’t ask people what it’s like when their whole brain is dead, but of course not; there’s nobody left to ask.

This means that if you take away all the functions that experiments have shown require certain brain parts to function, whatever “soul” is left that survives brain death cannot do any of the following: See, hear, speak, understand, remember, recognize faces, or make moral decisions. In what sense is that worth calling a “soul”? In what sense is that you? Those are just the ones we know for sure; as our repertoire expands, more and more cognitive functions will be mapped to specific brain regions. And of course there’s no evidence that anything survives whatsoever.

Nor are near-death experiences any kind of evidence of an afterlife. Yes, some people who were close to dying or briefly technically dead (“He’s only mostly dead!”) have had very strange experiences during that time. Of course they did! Of course you’d have weird experiences as your brain is shutting down or struggling to keep itself online. Think about a computer that has had a magnet run over its hard drive; all sorts of weird glitches and errors are going to occur. (In fact, powerful magnets can have an effect on humans not all that dissimilar from what weaker magnets can do to computers! Certain sections of the brain can be disrupted or triggered in this way; it’s called transcranial magnetic stimulation and it’s actually a promising therapy for some neurological and psychological disorders.) People also have a tendency to over-interpret these experiences as supporting their particular religion, when in fact it’s usually something no more complicated than “a bright light” or “a long tunnel” (another popular item is “positive feelings”). If you stop and think about all the different ways you might come to see “a bright light” and have “positive feelings”, it should be pretty obvious that this isn’t evidence of St. Paul and the Pearly Gates.

The evidence against an afterlife is totally overwhelming. The fact that when we die, we are gone, is among the most certain facts in science. So why do people cling to this belief? Probably because it’s comforting—or rather because the truth that death is permanent and irrevocable is terrifying. You’re damn right it is; it’s basically the source of all other terror, in fact. But guess what? “Terrifying” does not mean “false”. The idea of an afterlife may be comforting, but it’s still obviously not true.

While I was in the process of writing this book, my father died of a ruptured intracranial aneurysm. The event was sudden and unexpected, and by the time I was able to fly from California to Michigan to see him, he had already lost consciousness—for what would turn out to be forever. This event caused me enormous grief, grief from which I may never fully recover. Nothing would make me happier than knowing that he was not truly gone, that he lives on somewhere watching over me. But alas, I know it is not true. He is gone. Forever.

However, I do have a couple of things to say that might offer some degree of consolation:

First, because human minds are software, pieces of our loved ones do go on—in us. Our memories of those we have lost are tiny shards of their souls. When we tell stories about them to others, we make copies of those shards; or to use a more modern metaphor, we back up their data in the cloud. Were we to somehow reassemble all these shards together, we could not rebuild the whole person—there are always missing pieces. But it is also not true that nothing remains. What we have left is how they touched our lives. And when we die, we will remain in how we touch the lives of others. And so on, and so on, as the ramifications of our deeds in life and the generations after us ripple out through the universe at the speed of light, until the end of time.

Moreover, if there’s no afterlife there can be no Hell, and Hell is literally the worst thing imaginable. To subject even a single person—even the most horrible person who ever lived, Hitler, Stalin, Mao, whomever—to the experience of maximum possible suffering forever is an atrocity of incomparable magnitude. Hitler may have deserved a million years of suffering for what he did—but I’m not so sure about maximum suffering, and forever is an awful lot longer than a million years. Indeed, forever is so much longer than a million years that if your sentence is forever, then after serving a million years you still have as much left to go as when you began. But the Bible doesn’t even just say that the most horrible mass murderers will go to Hell; no, it says everyone will go to Hell by default, and deserve it, and can only be forgiven if we believe. No amount of good works will save us from this fate, only God’s grace.

If you believe this—or even suspect it—religion has caused you deep psychological damage. This is the theology of an abusive father—“You must do exactly as I say, or you are worthless and undeserving of love and I will hurt you and it will be all your fault.” No human being, no matter what they have done or failed to do, could ever possibly deserve a punishment as terrible as maximum possible suffering forever. Even if you’re a serial rapist and murderer—and odds are, you’re not—you still don’t deserve to suffer forever. You have lived upon this planet for only a finite time; you can therefore only have committed finitely many crimes and you can only deserve at most finite suffering. In fact, the vast majority of the world’s population is comprised of good, decent people who deserve joy, not suffering.

Indeed, many ethicists would say that nobody deserves suffering, it is simply a necessary evil that we use as a deterrent from greater harms. I’m actually not sure I buy this—if you say that punishment is all about deterrence and not about desert, then you end up with the result that anything which deters someone could count as a fair punishment, even if it’s inflicted upon someone else who did nothing wrong. But no ethicist worthy of the name believes that anybody deserves eternal punishment—yet this is what Jesus says we all deserve in the Bible. And Muhammad says similar things in the Qur’an, about lakes of eternal burning (4:56) and eternal boiling water to drink (47:15) and so on. It’s entirely understandable that such things would motivate you—indeed, they should motivate you completely to do just about anything—if you believed they were true. What I don’t get is why anybody would believe they are true. And I certainly don’t get why anyone would be willing to traumatize their children with these horrific lies.

Then there is Pascal’s Wager: An infinite punishment can motivate you if it has any finite probability, right? Theoretically, yes… but here’s the problem with that line of reasoning: Anybody can just threaten you with infinite punishment to make you do anything. Clearly something is wrong with your decision theory if any psychopath can just make you do whatever he wants because you’re afraid of what might happen just in case what he says might possibly be true. Beware of plausible-seeming theories that lead to such absurd conclusions; it may not be obvious what’s wrong with the argument, but it should be obvious that something is.

Compassion and the cosmos

Dec 24 JDN 2460304

When this post goes live, it will be Christmas Eve, one of the most important holidays around the world.

Ostensibly it celebrates the birth of Jesus, but it doesn’t really.

For one thing, Jesus almost certainly wasn’t born in December. The date of Christmas was largely set by the Council of Tours in AD 567; it was set to coincide with existing celebrations—not only other Christian celebrations such as the Feast of the Epiphany, but also many non-Christian celebrations such as Yuletide, Saturnalia, and others around the Winter Solstice. (People today often say “Yuletide” when they actually mean Christmas, because the syncretization was so absolute.)

For another, an awful lot of the people celebrating Christmas don’t particularly care about Jesus. Countries like Sweden, Belgium, the UK, Australia, Norway, and Denmark are majority atheist but still very serious about Christmas. Maybe we should try to secularize and ecumenize the celebration and call it Solstice or something, but that’s a tall order. For now, it’s Christmas.

Compassion, love, and generosity are central themes of Christmas—and, by all accounts, Jesus did exemplify those traits. Christianity has a very complicated history, much of it quite dark; but this part of it at least seems worth preserving and even cherishing.

It is truly remarkable that we have compassion at all.

Most of this universe has no compassion. Many would like to believe otherwise, and they invent gods and other “higher beings” or attribute some sort of benevolent “universal consciousness” to the cosmos. (Really, most people copy the prior inventions of others.)

This is all wrong.

The universe is mostly empty, and what is here is mostly pitilessly indifferent.

The vast majority of the universe is comprised of cold, dark, empty space—or perhaps of “dark energy“, a phenomenon we really don’t understand at all, which many physicists believe is actually a shockingly powerful form of energy contained within empty space.

Most of the rest is made up of “dark matter“, a substance we still don’t really understand either, but believe to be basically a dense sea of particles that have mass but not much else, which cluster around other mass by gravity but otherwise rarely interact with other matter or even with each other.

Most of the “ordinary matter”, or more properly baryonic matter, (which we think of as ordinary, but actually by far the minority) is contained within stars and nebulae. It is mostly hydrogen and helium. Some of the other lighter elements—like lithium, sodium, carbon, oxygen, nitrogen, and all the way up to iron—can be made within ordinary stars, but still form a tiny fraction of the mass of the universe. Anything heavier than that—silver, gold, beryllium, uranium—can only be made in exotic, catastrophic cosmic events, mainly supernovae, and as a result these elements are even rarer still.

Most of the universe is mind-bendingly cold: about 3 Kelvin, just barely above absolute zero.

Most of the baryonic matter is mind-bendingly hot, contained within stars that burn with nuclear fires at thousands or even millions of Kelvin.

From a cosmic perspective, we are bizarre.

We live at a weird intermediate temperature and pressure, where matter can take on such exotic states as liquid and solid, rather than the far more common gas and plasma. We do contain a lot of hydrogen—that, at least, is normal by the standards of baryonic matter. But then we’re also made up of oxygen, carbon, nitrogen, and even little bits of all sorts of other elements that can only be made in supernovae? What kind of nonsense lifeform depends upon something as exotic as iodine to survive?

Most of the universe does not care at all about you.

Most of the universe does not care about anything.

Stars don’t burn because they want to. They burn because that’s what happens when hydrogen slams into other hydrogen hard enough.

Planets don’t orbit because they want to. They orbit because if they didn’t, they’d fly away or crash into their suns—and those that did are long gone now.

Even most living things, which are already nearly as bizarre as we are, don’t actually care much.

Maybe there is a sense in which a C. elegans or an oak tree or even a cyanobacterium wants to live. It certainly seems to try to live; it has behaviors that seem purposeful, which evolved to promote its ability to survive and pass on offspring. Rocks don’t behave. Stars don’t seek. But living things—even tiny, microscopic living things—do.

But we are something very special indeed.

We are animals. Lifeforms with complex, integrated nervous systems—in a word, brains—that allow us to not simply live, but to feel. To hunger. To fear. To think. To choose.

Animals—and to the best of our knowledge, only animals, though I’m having some doubts about AI lately—are capable of making choices and experiencing pleasure and pain, and thereby becoming something more than living beings: moral beings.

Because we alone can choose, we alone have the duty to choose rightly.

Because we alone can be hurt, we alone have the right to demand not to be.

Humans are even very special among animals. We are not just animals but chordates; not just chordates but mammals; not just mammals but primates. And even then, not just primates. We’re special even by those very high standards.

When you count up all the ways that we are strange compared to the rest of the universe, it seems incredibly unlikely that beings like us would come into existence at all.

Yet here we are. And however improbable it may have been for us to emerge as intelligent beings, we had to do so in order to wonder how improbable it was—and so in some sense we shouldn’t be too surprised.

It is a mistake to say that we are “more evolved” than any other lifeform; turtles and cockroaches had just as much time to evolve as we did, and if anything their relative stasis for hundreds of millions of years suggests a more perfected design: “If it ain’t broke, don’t fix it.”

But we are different than other lifeforms in a very profound way. And I dare say, we are better.

All animals feel pleasure, pain and hunger. (Some believe that even some plants and microscopic lifeforms may too.) Pain when something damages you; hunger when you need something; pleasure when you get what you needed.

But somewhere along the way, new emotions were added: Fear. Lust. Anger. Sadness. Disgust. Pride. To the best of our knowledge, these are largely chordate emotions, often believed to have emerged around the same time as reptiles. (Does this mean that cephalopods never get angry? Or did they evolve anger independently? Surely worms don’t get angry, right? Our common ancestor with cephalopods was probably something like a worm, perhaps a nematode. Does C. elegans get angry?)

And then, much later, still newer emotions evolved. These ones seem to be largely limited to mammals. They emerged from the need for mothers to care for their few and helpless young. (Consider how a bear or a cat fiercely protects her babies from harm—versus how a turtle leaves her many, many offspring to fend for themselves.)

One emotion formed the core of this constellation:

Love.

Caring, trust, affection, and compassion—and also rejection, betrayal, hatred, and bigotry—all came from this one fundamental capacity to love. To care about the well-being of others as well as our own. To see our purpose in the world as extending beyond the borders of our own bodies.

This is what makes humans different, most of all. We are the beings most capable of love.

We are of course by no means perfect at it. Some would say that we are not even very good at loving.

Certainly there are some humans, such as psychopaths, who seem virtually incapable of love. But they are rare.

We often wish that we were better at love. We wish that there were more compassion in the world, and fear that humanity will destroy itself because we cannot find enough compassion to compensate for our increasing destructive power.

Yet if we are bad at love, compared to what?

Compared to the unthinking emptiness of space, the hellish nuclear fires of stars, or even the pitiless selfishness of a worm or a turtle, we are absolute paragons of love.

We somehow find a way to love millions of others who we have never even met—maybe just a tiny bit, and maybe even in a way that becomes harmful, as solidarity fades into nationalism fades into bigotry—but we do find a way. Through institutions of culture and government, we find a way to trust and cooperate on a scale that would be utterly unfathomable even to the most wise and open-minded bonobo, let alone a nematode.

There are no other experts on compassion here. It’s just us.

Maybe that’s why so many people long for the existence of gods. They feel as ignorant as children, and crave the knowledge and support of a wise adult. But there aren’t any. We’re the adults. For all the vast expanses of what we do not know, we actually know more than anyone else. And most of the universe doesn’t know a thing.

If we are not as good at loving as we’d like, the answer is for us to learn to get better at it.

And we know that we can get better at it, because we have. Humanity is more peaceful and cooperative now than we have ever been in our history. The process is slow, and sometimes there is backsliding, but overall, life is getting better for most people in most of the world most of the time.

As a species, as a civilization, we are slowly learning how to love ourselves, one another, and the rest of the world around us.

No one else will learn to love for us. We must do it ourselves.

But we can.

And I believe we will.

Moral disagreement is not bad faith

Jun 7 JDN 2459008

One of the most dangerous moves to make in an argument is to accuse your opponent of bad faith. It’s a powerful, and therefore tempting, maneuver: If they don’t even really believe what they are saying, then you can safely ignore basically whatever comes out of their mouth. And part of why this is so tempting is that it is in fact occasionally true—people do sometimes misrepresent their true beliefs in various ways for various reasons. On the Internet especially, sometimes people are just trolling.

But unless you have really compelling evidence that someone is arguing in bad faith, you should assume good faith. You should assume that whatever they are asserting is what they actually believe. For if you assume bad faith and are wrong, you have just cut off any hope of civil discourse between the two of you. You have made it utterly impossible for either side to learn anything or change their mind in any way. If you assume good faith and are wrong, you may have been overly charitable; but in the end you are the one that is more likely to persuade any bystanders, not the one who was arguing in bad faith.

Furthermore, it is important to really make an effort to understand your opponent’s position as they understand it before attempting to respond to it. Far too many times, I have seen someone accused of bad faith by an opponent who simply did not understand their worldview—and did not even seem willing to try to understand their worldview.

In this post, I’m going to point out some particularly egregious examples of this phenomenon that I’ve found, all statements made by left-wing people in response to right-wing people. Why am I focusing on these? Well, for one thing, it’s as important to challenge bad arguments on your own side as it is to do so on the other side. I also think I’m more likely to be persuasive to a left-wing audience. I could find right-wing examples easily enough, but I think it would be less useful: It would be too tempting to think that this is something only the other side does.

Example 1: “Republicans Have Stopped Pretending to Care About Life”

The phrase “pro-life” means thinking that abortion is wrong. That’s all it means. It’s jargon at this point. The phrase has taken on this meaning independent of its constituent parts, just as a red herring need not be either red or a fish.

Stop accusing people of not being “truly pro-life” because they don’t adopt some other beliefs that are not related to abortion. Even if those would be advancing life in some sense (most people probably think that most things they think are good advance life in some sense!), they aren’t relevant to the concept of being “pro-life”. Moreover, being “pro-life” in the traditional conservative sense isn’t even about minimizing the harm of abortion or the abortion rate. It’s about emphasizing the moral wrongness of abortion itself, and often even criminalizing it.


I don’t think this is really so hard to understand. If someone truly, genuinely believes that abortion is murdering a child, it’s quite clear why they won’t be convinced by attempts at minimizing harm or trying to reduce the abortion rate via contraception or other social policy. Many policies are aimed at “reducing the demand for abortion”; would you want to “reduce the demand for murder”? No, you’d want murderers to be locked up. You wouldn’t care what their reasons were, and you wouldn’t be interested in using social policies to address those reasons. It’s not even hard to understand why this would be such an important issue to them, overriding almost anything else: If you thought that millions of people were murdering children you would consider that an extremely important issue too.

If you want to convince people to support Roe v. Wade, you’re going to have to change their actual belief that abortion is murder. You may even be able to convince them that they don’t really think abortion is murder—many conservatives support the death penalty for murder, but very few do so for abortion. But they clearly do think that abortion is a grave moral wrong, and you can’t simply end-run around that by calling them hypocrites because they don’t care about whatever other issue you think they should care about.

Example 2: “Stop pretending to care about human life if you support wars in the Middle East”

I had some trouble finding the exact wording of the meme I originally saw with this sentiment, but the gist of it was basically that if you support bombing Afghanistan, Libya, Iraq, and/or Syria, you have lost all legitimacy to claiming that you care about human life.

Say what you will about these wars (though to be honest I think what the US has done in Libya and Syria has done more good than harm), but simply supporting a war does not automatically undermine all your moral legitimacy. The kind of radical pacifism that requires us to never kill anyone ever is utterly unrealistic; the question is and has always been “Which people is it okay to kill, when and how and why?” Some wars are justified; we have to accept that.

It would be different if these were wars of genocidal extermination; I can see a case for saying that anyone who supported the Holocaust or the Rwandan Genocide has lost all moral legitimacy. But even then it isn’t really accurate to say that those people don’t care about human life; it’s much more accurate to say that they have assigned the group of people they want to kill to a subhuman status. Maybe you would actually get more traction by saying “They are human beings too!” rather than by accusing people of not believing in the value of human life.

And clearly these are not wars of extermination—if the US military wanted to exterminate an entire nation of people, they could do so much more efficiently than by using targeted airstrikes and conventional warfare. Remember: They have nuclear weapons. Even if you think that they wouldn’t use nukes because of fear of retaliation (Would Russia or China really retaliate using their own nukes if the US nuked Afghanistan or Iran?), it’s clear that they could have done a lot more to kill a lot more innocent people if that were actually their goal. It’s one thing to say they don’t take enough care not to kill innocent civilians—I agree with that. It’s quite another to say that they actively try to kill innocent civilians—that’s clearly not what is happening.

Example 3: “Stop pretending to be Christian if you won’t help the poor.”

This one I find a good deal more tempting: In the Bible, Jesus does spend an awful lot more words on helping the poor than he does on, well, almost anything else; and he doesn’t even once mention abortion or homosexuality. (The rest of the Bible does at least mention homosexuality, but it really doesn’t have any clear mentions of abortion.) So it really is tempting to say that anyone who doesn’t make helping the poor their number one priority can’t really be a Christian.

But the world is more complicated than that. People can truly and deeply believe some aspects of a religion while utterly rejecting others. They can do this more or less arbitrarily, in a way that may not even be logically coherent. They may even honestly believe that every single word of the Bible to be the absolute perfect truth of an absolute perfect God, and yet there are still passages you could point them to that they would have to admit they don’t believe in. (There are literally hundreds of explicit contradictions in the Bible. Many are minor—though still undermine any claim to absolute perfect truth—but some are really quite substantial. Does God forgive and forget, or does he visit revenge upon generations to come? That’s kind of a big deal! And should we be answering fools or not?) In some sense they don’t really believe that every word is true, then; but they do seem to believe in believing it.

Yes, it’s true; people can worship a penniless son of a carpenter who preached peace and charity and at the same time support cutting social welfare programs and bombing the Middle East. Such a worldview may not be entirely self-consistent; it’s certainly not the worldview that Jesus himself espoused. But it nevertheless is quite sincerely believed by many millions of people.

It may still be useful to understand the Bible in order to persuade Christians to help the poor more. There are certainly plenty of passages you can point them to where Jesus talks about how important it is to help the poor. Likewise, Jesus doesn’t seem to much like the rich, so it is fair to ask: How Christian is it for Republicans to keep cutting taxes on the rich? (I literally laughed out loud when I first saw this meme: “Celebrate Holy Week By Flogging a Banker: It’s What Jesus Would Have Done!“) But you should not accuse people of “pretending to be Christian”. They really do strongly identify themselves as Christian, and would sooner give up almost anything else about their identity. If you accuse them of pretending, all that will do is shut down the conversation.

Now, after all that, let me give one last example that doesn’t fit the trend, one example where I really do think the other side is acting in bad faith.


Example 4: “#AllLivesMatter is a lie. You don’t actually think all lives matter.”

I think this one is actually true. If you truly believed that all lives matter, you wouldn’t post the hashtag #AllLivesMatter in response to #BlackLivesMatter protests against police brutality.

First of all, you’d probably be supporting those protests. But even if you didn’t for some reason, that isn’t how you would use the hashtag. As a genuine expression of caring, the hashtag #AllLivesMatter would only really make sense for something like Oxfam or UNICEF: Here are these human lives that are in danger and we haven’t been paying enough attention to them, and here, you can follow my hashtag and give some money to help them because all lives matter. If it were really about all lives mattering, then you’d see the hashtag pop up after a tsunami in Southeast Asia or a famine in central Africa. (For awhile I tried actually using it that way; I quickly found that it was overwhelmed by the bad faith usage and decided to give up.)

No, this hashtag really seems to be trying to use a genuinely reasonable moral norm—all lives matter—as a weapon against a political movement. We don’t see #AllLivesMatter popping up asking people to help save some lives—it’s always as a way of shouting down other people who want to save some lives. It’s a glib response that lets you turn away and ignore their pleas, without ever actually addressing the substance of what they are saying. If you really believed that all lives matter, you would not be so glib; you would want to understand how so many people are suffering and want to do something to help them. Even if you ultimately disagreed with what they were saying, you would respect them enough to listen.

The counterpart #BlueLivesMatter isn’t in bad faith, but it is disturbing in a different way: What are ‘blue lives’? People aren’t born police officers. They volunteer for that job. They can quit if want. No one can quit being Black. Working as a police officer isn’t even especially dangerous! But it’s not a bad faith argument: These people really do believe that the lives of police officers are worth more—apparently much more—than the lives of Black civilians.

I do admit, the phrasing “#BlackLivesMatter” is a bit awkward, and could be read to suggest that other lives don’t matter, but it takes about 2 minutes of talking to someone (or reading a blog by someone) who supports those protests to gather that this is not their actual view. Perhaps they should have used #BlackLivesMatterToo, but when your misconception is that easily rectified the responsibility to avoid it falls on you. (Then again, some people do seem to stoke this misconception: I was quite annoyed when a question was asked at a Democratic debate: “Do Black Lives Matter, or Do All Lives Matter?” The correct answer of course is “All lives matter, which is why I support the Black Lives Matter movement.”)

So, yes, bad faith arguments do exist, and sometimes we need to point them out. But I implore you, consider that a last resort, a nuclear option you’ll only deploy when all other avenues have been exhausted. Once you accuse someone of bad faith, you have shut down the conversation completely—preventing you, them, and anyone else who was listening from having any chance of learning or changing their mind.