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I've acquired a new superpower

danielwirtz.com

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Re: I've acquired a new superpower

#561

Post by mewpmewp2 »

batch12 wrote: post #459
mewpmewp2 wrote: post #391

Earlier quoted context omitted.

I was still unable to do this, not sure what I am doing wrong, but I can't get over the sense that I am always directing only one of my eyes. I can't move them independently.

In this case, you aren't directing your eyes, but instead looking through the object. Start with your finger about 6-8 inches from your face, and look at your screen. You'll see two fingers. Now try to look past your screen. The farther you are from the object the harder it is.

> You'll see two fingers

I don't follow this part, still. Do you mean computer screen / phone screen behind my finger which I would try to look at?

I can switch between my left and right eye when I concentrate, but I can't see both at once. I can try to rapidly switch from left to right to back, but it takes a lot of effort, and it's never the same image at once?

My right eye is dominant, I can switch to left eye if I focus hard, but I can't merge both or can I?

Edit:

I tried putting a paper between my eyes, so right eye would only see right part and left eye only left, am I supposed to see the whole image at once then combining the inputs from both eyes at the same time? Because I can only see left or right, as if my other eye was closed, even though it's not.

I'm wondering if something is wrong with me.

Re: I've acquired a new superpower

#562

Post by mewpmewp2 »

davejohnclark wrote: post #355
mplanchard wrote: post #315

Earlier quoted context omitted.

I've also always had a hard time with these. I suspect it's because one of my eyes was slightly lazy when I was a child, so my brain learned to put more importance on the signal from the other eye. When I cross my eyes, the image from the better eye tends to just totally override the other one, so it can be really hard to see these kinds of effects.

I have exactly this as well. My optician explained it as my brain would use the information from the lazier eye only if there wasn't any information from the good eye. Just tried the eyes crossed trick on the easy image in the article and the 3rd image in the middle is the right one. If I let them drift apart so there are 4 images I can see the left one and the difference (because I'd already found it), but as soon a…

I seem to have the same thing. I can't get double images or any tricks at all.

I tried putting folded paper between my eyes to divide the images in such a way that I would only see left side with my left eye, and right side with my right, and I can alternate between image from left and image from right, but I can never see the image at once, or right side when I'm using my left eye.

Re: I've acquired a new superpower

#564

Post by mkoubaa »

scottshambaugh wrote: post #486

This I think is an underrated tool for scientific visualization. I made a matplotlib add-on that will let you make stereogram plots of data, and use this cross eyed or parallel eyed techniques to see it in 3D. https://github.com/scottshambaugh/mpl_stereo

Incredible!

Re: I've acquired a new superpower

#566

Post by batch12 »

mewpmewp2 wrote: post #561
batch12 wrote: post #459

Earlier quoted context omitted.

In this case, you aren't directing your eyes, but instead looking through the object. Start with your finger about 6-8 inches from your face, and look at your screen. You'll see two fingers. Now try to look past your screen. The farther you are from the object the harder it is.

> You'll see two fingers I don't follow this part, still. Do you mean computer screen / phone screen behind my finger which I would try to look at? I can switch between my left and right eye when I concentrate, but I can't see both at once. I can try to rapidly switch from left to right to back, but it takes a lot of effort, and it's never the same image at once? My right eye is dominant, I can switch to left eye if…

For me, when I look past my finger, I see two and each is sort of transparent as the image of each eye is transposed over the other. Maybe you can only see one at a time?

Re: I've acquired a new superpower

#567

Post by K0balt »

mauvehaus wrote: post #377
K0balt wrote: post #364

Earlier quoted context omitted.

Fun fact- when I was a teenager, my friends and I set up a stand in a local mall selling those “magic eye”posters. We made bank for a few months. But, there are actually a lot of people that medically cannot use the technique, or at least for whom it is extremely difficult or less vivid. Severe astigmatism, (obviously) blindness in one or more eyes, and certain attention deficits or fidgety types often have a difficu…

How bad does your astigmatism have to be? I've only ever been able to get one magic eye poster to work for me in my life, and I had no idea astigmatism had any impact until just now! I don't know if mine counts as severe, but this would explain a lot for me. As it happens, I also can't focus on the images in TFA after crossing my eyes to get the shimmer the author refers to.

I don’t know for sure, but it would make sense if it had to be fairly severe. If it were not enough to meaningfully distort one eye vs the other it would not seem to be detrimental. It’s only when the two images can’t be correlated any more that the problem shows up.

In my recent years I have developed some astigmatism, but I can still do them without difficulty.

Re: I've acquired a new superpower

#568

Post by mewpmewp2 »

batch12 wrote: post #566
mewpmewp2 wrote: post #561

Earlier quoted context omitted.

> You'll see two fingers I don't follow this part, still. Do you mean computer screen / phone screen behind my finger which I would try to look at? I can switch between my left and right eye when I concentrate, but I can't see both at once. I can try to rapidly switch from left to right to back, but it takes a lot of effort, and it's never the same image at once? My right eye is dominant, I can switch to left eye if…

For me, when I look past my finger, I see two and each is sort of transparent as the image of each eye is transposed over the other. Maybe you can only see one at a time?

Finally after some time of trying I was kind of able to see 2 fingers, but I think I have some sort of condition that means I mostly have monocular vision compared to binocular vision, which most people seem to have. I am still trying to understand how different I see things from most people. But this is something I never realized.

My brain really prefers to process from only one eye at a time, it seems. I wasn't able to get further than the 2 fingers even after more than a hour of trying. E.g. I wasn't able to duplicate anything on my screen.

Weird that I only now realize this after decades of living. I wonder what impacts has it had on my depth perception etc.

Re: I've acquired a new superpower

#569

Post by shw1n »

One of the coolest "immediate novelty" things I've read in a while

Sent it to my whole family

The way your mind locks in and focuses on the middle one seems a testament to the brain processing behind vision we take for granted

Re: I've acquired a new superpower

#570

Post by gnclmorais »

jeffhuys wrote: post #161
nayuki wrote: post #68

I discovered this trick independently about a decade ago, to use cross-eyed viewing to easily spot differences between two similar images. Like you said, the parts that mismatch appear to shimmer and be unstable, making them obvious. However, I feel eye strain from doing it, so I prefer other methods. 99% of the time, I do https://en.wikipedia.org/wiki/Blink_comparator instead, just switching between two images with…

To reduce eye strain, don’t cross your eyes, but relax them (so, the other way). Instantly clear and snaps together as if magnetic.

By ready your comment, I just realised that this is what I’m doing instinctively, instead of crossing my eyes :o
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