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by okamiueru 861 days ago
I'm not convinced. When he talks about things I understand, he does so in a way that I still find frustratingly convoluted. In these cases, it's not for a lack of education. It probably just means that this style of presenting topics just isn't for me, which is completely fine. Diversity in free education is great and commendable.

But I think you touch on the part that I think is the reason why. Because PBS tries to dumb things down, but instead of doing it like Derek does, which adds clarity, PBS does it by "mystifying" it. Probably tickles someone's itch, but I find it annoying.

Take the video posted, for example. It starts out immediately with thumbnail "Life = Multiverse?". If it really was for the niche audience, that title is remarkably dumb, although understandable for the same reasons clickbait titles work. Perhaps PBS meant to present the question whether one leads to or suggests the other? "Life ⇝ Multiverse?" would better express that. Though, the thought process of how multiverse and the anthropic principle go together is: "Multiverse ⇝ Life?".

The video starts out by expressing three statements, related to the Anthropic Principle (https://en.wikipedia.org/wiki/Anthropic_principle). Had they instead worded those statements as to be correct, it would be a very nice way of introducing the topic.

This is how it is presented:

"Life exists in our universe" ⇝ "Our universe is capable of producing and sustaining life". Which is fine. We understand what producing and sustaining life is, because it is really just the first statement with some added anthropomorphism.

The next one, which is the whole point of the "hook" for the video, and is probably intended to be a little bit cheeky, except that he keeps a straight face, so, unless you know enough, it'll probably just misinform you.

"Okay. Let's try one final uncontroversial statement. Therefore, there are countless universes".

Well, no. Multiverse theory is one way to explain the unlikeliness of the physical constants working out the way they "conveniently" do in our universe. But this logical inference is not an "uncontroversial statement". It doesn't qualify, yet it is dumbed down to suggest it does. I'm sure that the following "Hm", and look to the side, is meant to express this. What do I know. But I'm not particularly amused or impressed.

So, so far, we've seen the thumbnail, and the first three sentences before the intro video rolls. And, it's been 1. Inaccurate information in thumbnail, 2. incorrect logical inference 3. false conclusion.

I can probably continue the video, but this is why I dislike PBS so much. It doesn't really try to dumb things down. It just IMO, fails to communicate science well.

2 comments

I believe you're in error with the assumption that "there are countless universes" means multiverse in his description. It means that there are countless universe possibilities we can imagine, one for each permutation of the universal constants. Other than a small subset of them, one of which we exist in, nearly all of them would not be able to contain life because they wouldn't have conditions to do so. It doesn't imply that these other universes exist in some "physical" sense, only conceptual.
Yeah, your confusion there is like being confused from the use of a literary device. The intent was exactly to illustrate why the implication 'life -> multiverse' may be problematic.

It was communicated just fine, I think you should continue watching?

Are you sure you got the argument I'm presenting? You did quickly make an edit to avoid a rather rude remark.

My point is that their use of literary devices, as you put it, are often misleading if not flat out wrong. The listener needs to he able identify them as such, and I don't think that's a good way to communicate science.

It doesn't mean that PBS is bad. Note that I have made no such statement. I'm just saying that I dislike it, and tried to be constructive as to why. If this offended you, like your initial remark might suggest, perhaps you are reading too much into it.

I did want to avoid implying that videos are harder to understand if you find nonverbal cues hard to understand, but sure. That would genuinely be a reason to avoid PBS videos and that's fine.

The point is their use of the literary device here was not misleading nor 'flat wrong'. It is serving as a jumping off point from the video title 'Does Life Need a Multiverse to Exist?'. You may argue that such a question is ill posed, but then state your argument properly.

Read: they are NOT talking about the anthropic principle here. You are probably confused because you are trying to shoehorn this into discussion when the video is not even talking about this yet. Yes the anthropic principle is cogent to the video but not until later.

Sounds like we agree then.

The difference in opinion is that I don't consider literary devices to validate incorrect or misleading statements. Which is why I dislike PBS. You do, and that's fine. To each their own.

> Read: they are NOT talking about the anthropic principle here. You are probably confused because you are trying to shoehorn this into discussion when the video is not even talking about this yet. Yes the anthropic principle is cogent to the video but not until later.

You are not only confused because they are using a literary device, you are _primarily_ confused because you think they are talking about the anthropic principle, when they are not.

Anyways. I am sure you have your reasons for disliking PBS. Just that the reason you've given here is incoherent, for reasons I understand (trying to make a point quickly etc). No worries.

You seem very hung up on my incorrect assumption as to what extent the video was about the anthropic principle or not. I have not watched it, nor do I intend to, and I am happy with being wrong about it. That said, it also isn't relevant to my dislike of PBS, or arguments presented. I just happened to click and take a peek at this particular video, to see if I could pinpoint the kind of stuff that I have come to associate with them. I didn't need to watch very long to find examples. Examples, that you can take at face value, in it's own isolated context, which makes it completely irrelevant what you are hung up on, and suggesting I am confused by.

So, I'll make it simple.

"LIFE = MULTIVERSE?", is... a very dumb statement. It can function as a clickbait, but I'm assuming that PBS wants to suggest a relationship of inference. Why start out with possibly giving someone a wrong idea/concept? Now, this isn't a big deal. I just took a peek, and the first thing I saw was rather dumb. So, that's what I'll mention.

Secondly is the sequence of statements, that are explicitly stated as "uncontroversial" in the inference between them.

They are:

"Life exists in our universe" ⇝ "Our universe is capable of producing and sustaining life" ⇝ "there are countless universes".

I'm taking these at face value. Third inference is invalid for more than one reason. Yet, it is presented as nothing but. You consider that OK. I can only think of two possible explanations for why: 1. You consider it OK to be incorrect and misleading when it is used as a literary device. 2. You do not understand why it is an invalid inference.

Either is fine by me. However, I'm not really confused. This... isn't very confusing. The only thing I've stated as a personal opinion here, is that I dislike PBS for being misleading and incorrect, as a literary device. You suggested that they weren't being misleading or incorrect, because there is a "hint hint, nudge nudge" that it might be ironic. So, my person opinion is: well, that's pretty fucking annoying. Hence my conclusion. Which is why I'll just stick to Derek and the likes who can manage to dumb things down to my level. Everyone is happy.

PS: .. and in case you might argue this; it also doesn't matter what they explain later on, if that's why you mentioned I should watch on. There is no "uncontroversial" series of arguments that will reach the logical conclusion "there are countless universes". It's just one of several ways to reason about why life, and the laws of physics, happen to allow something otherwise improbable. Which is what I'm assuming they will get to, but again, I have no intentions of watching it.