Perhaps that extremely simple systems, that no one would consider conscious, can also “cause collapse”? It doesn’t take much: just entangle the superposed state with another particle—then when you measure, canceling can’t occur and you perceive a randomly collapsed wavefunction. The important thing is the entangling, not the fact that you’re conscious: measuring a superposed state (i.e. entangling your mind with it) will do the trick, but it’s entirely unnecessary.
I used to believe the consciousness-causes-collapse idea, and it was quite a relief when I realized it doesn’t work like that.
Some of the consciousness causes collapse people would claim that you intended to cause that entanglement. (If you are thinking this sounds like an attempt to make their claims not falsifiable, I’d be inclined to agree.)
I can intentionally do lots of things, some of which cause entanglement and “collapse”, and some of which don’t. I’d say to them that it still seems like the conscious intent isn’t what’s important.
If you’d like to substitute a better picture for the layperson, I’d go with “disturbing the system causes collapse”. (Where “disturb” is really just a nontechnical way of saying “entangle with the environment.”) Then it’s clear that conscious observation (which involves disturbing the system somehow to get your measurement) will cause (apparent) collapse, but doesn’t do so in a special depends-on-consciousness way. And if they want a precise definition of “disturb”, you can get into the not-too-difficult math of superposition and entanglement.
And if they want a precise definition of “disturb”, you can get into the not-too-difficult math of superposition and entanglement.
I’m a math grad student and I consider the math of entanglement and the like to be not easy. There are two types of consciousness-causes-collapse proponents. The first type who doesn’t know much physics will find entanglement to be pretty difficult (they need to already understand complex numbers and basic linear algebra to get the structure of what is going on). Even a genuinely curious individual will likely have trouble following that unless they are a mathematically inclined individual. The second, much smaller group of people, are people who already understand entanglement but still buy into consciousness-causes collapse.They seem to have developed very complicated and sometimes subtle notions of what it means for things to be conscious or to have intent (almost akin to theologians). So in either case this avenue of attack seems unlikely to be successful.
If one is more concerned with convincing bystanders (as is often more relevant on the internet. People might not change their minds often. But people reading might), then this could actually do a good job when encountering the first category by making it clear that one knows a lot more about the subject than they do. This seems to empirically work in real life also as one can see in various discussions. See for example the cases Deepak Chopra has try to invoke a connection between QM and consciousness and he gets shot down pretty bluntly when there’s anyone with a bit of math or physics background.
You’re right; maybe I’m overestimating my ability to explain things so that laypeople will understand. But there are some concessions you can make to get the idea across without the full background of complex linear algebra—often I use polarizers as an example, because most people have some experience with them (from sunglasses or 3D movies), and from there it’s only a hop, skip, and a jump to entangled photons.
I do try to explain so that people feel like the explanation is totally natural, but then I often run into the problem of people trying to reason about quantum mechanics “in English”, so to speak, instead of going to the underlying math to learn more. Any suggestions?
It seems to me that it is easier to get people to realize just that they can’t use their regular language to understand what is going on than to actually explain it. People seem to have issues with understanding this primarily because of Dunning-Kruger and because of the large number of popularizations of difficult science that just uses vague analogies.
I’d ask “ok. This is going to take some math. Did you ever take linear algebra?” If yes, then I just explain things. When they answer no (vast majority of the time)I then say “ok do you remember how matrix multiplication works?” They will generally not or have only a vague memory. At that point I then tell them that I could spending a few hours or so developing the necessary tools but that they really don’t have the background without a lot of work. This generally results in annoyance and blustering on their part. At this point one tells them the story of Oresme and how he came up with the idea of gravity in the 1300s but since he didn’t have a mathematical framework it was absolutely useless. This gets the point across sometimes.
Edit: Your idea of using polarization as an example is an interesting one and I may try that in the future.
Perhaps that extremely simple systems, that no one would consider conscious, can also “cause collapse”? It doesn’t take much: just entangle the superposed state with another particle—then when you measure, canceling can’t occur and you perceive a randomly collapsed wavefunction. The important thing is the entangling, not the fact that you’re conscious: measuring a superposed state (i.e. entangling your mind with it) will do the trick, but it’s entirely unnecessary.
I used to believe the consciousness-causes-collapse idea, and it was quite a relief when I realized it doesn’t work like that.
Some of the consciousness causes collapse people would claim that you intended to cause that entanglement. (If you are thinking this sounds like an attempt to make their claims not falsifiable, I’d be inclined to agree.)
I can intentionally do lots of things, some of which cause entanglement and “collapse”, and some of which don’t. I’d say to them that it still seems like the conscious intent isn’t what’s important.
If you’d like to substitute a better picture for the layperson, I’d go with “disturbing the system causes collapse”. (Where “disturb” is really just a nontechnical way of saying “entangle with the environment.”) Then it’s clear that conscious observation (which involves disturbing the system somehow to get your measurement) will cause (apparent) collapse, but doesn’t do so in a special depends-on-consciousness way. And if they want a precise definition of “disturb”, you can get into the not-too-difficult math of superposition and entanglement.
I’m a math grad student and I consider the math of entanglement and the like to be not easy. There are two types of consciousness-causes-collapse proponents. The first type who doesn’t know much physics will find entanglement to be pretty difficult (they need to already understand complex numbers and basic linear algebra to get the structure of what is going on). Even a genuinely curious individual will likely have trouble following that unless they are a mathematically inclined individual. The second, much smaller group of people, are people who already understand entanglement but still buy into consciousness-causes collapse.They seem to have developed very complicated and sometimes subtle notions of what it means for things to be conscious or to have intent (almost akin to theologians). So in either case this avenue of attack seems unlikely to be successful.
If one is more concerned with convincing bystanders (as is often more relevant on the internet. People might not change their minds often. But people reading might), then this could actually do a good job when encountering the first category by making it clear that one knows a lot more about the subject than they do. This seems to empirically work in real life also as one can see in various discussions. See for example the cases Deepak Chopra has try to invoke a connection between QM and consciousness and he gets shot down pretty bluntly when there’s anyone with a bit of math or physics background.
You’re right; maybe I’m overestimating my ability to explain things so that laypeople will understand. But there are some concessions you can make to get the idea across without the full background of complex linear algebra—often I use polarizers as an example, because most people have some experience with them (from sunglasses or 3D movies), and from there it’s only a hop, skip, and a jump to entangled photons.
I do try to explain so that people feel like the explanation is totally natural, but then I often run into the problem of people trying to reason about quantum mechanics “in English”, so to speak, instead of going to the underlying math to learn more. Any suggestions?
It seems to me that it is easier to get people to realize just that they can’t use their regular language to understand what is going on than to actually explain it. People seem to have issues with understanding this primarily because of Dunning-Kruger and because of the large number of popularizations of difficult science that just uses vague analogies.
I’d ask “ok. This is going to take some math. Did you ever take linear algebra?” If yes, then I just explain things. When they answer no (vast majority of the time)I then say “ok do you remember how matrix multiplication works?” They will generally not or have only a vague memory. At that point I then tell them that I could spending a few hours or so developing the necessary tools but that they really don’t have the background without a lot of work. This generally results in annoyance and blustering on their part. At this point one tells them the story of Oresme and how he came up with the idea of gravity in the 1300s but since he didn’t have a mathematical framework it was absolutely useless. This gets the point across sometimes.
Edit: Your idea of using polarization as an example is an interesting one and I may try that in the future.
Upvoted; thanks for providing the name “Dunning-Kruger” and the Oresme example!