Light switches wired wrongly

[EFLImpudence]

Why have you suddenly quoted and responded to a message I posted best part of 100 posts earlier in this discussion?

Because it was just quoted by SUNRAY in post #219

 

[JohnW2]

BUT...
With both eyes open, if you chose the other finger/distant combination to cover the result of the test is exactly the same except it jumps the other way

As I've said, all this discussion about two fingers, and the choice between them, and which direction they move, is just unnecessary complication. The test is so simple (and, theoretically, almost 'foolproof' ) in that, no matter what one does, absolutely nothing changes if one closes one's non-dominant eye but things DO change if one closes the dominant one. Is that not the case for you?

 

[JohnW2]

Because it was just quoted by SUNRAY in post #219

Ah, so he did

Whilst it is true that I gave a very different description of the test back then, as I have just been saying, it transpires that it really doesn't matter a jot how one does it - since it is always the case that closing one's non-dominant eye changes nothing, whereas closing ones dominant eye does result in changes.

 

[SUNRAY]

As I've said, all this discussion about two fingers, and the choice between them, and which direction they move, is just unnecessary complication. The test is so simple (and, theoretically, almost 'foolproof' ) in that, no matter what one does, absolutely nothing changes if one closes one's non-dominant eye but things DO change if one closes the dominant one. Is that not the case for you?

Quite honestly, if I understood your results I'd have an understanding.

Do me a favour and let me know what happens when you try this:
Close your left eye and align your finger with the distant object and observe what happens when you alternate your eyes.
My finger jumps to the right.
Then.

Close your right eye and align your finger with the distant object and observe what happens when you alternate your eyes.
My finger jumps to the left.

 

[JohnW2]

Do me a favour and let me know what happens when you try this:
Close your left eye and align your finger with the distant object and observe what happens when you alternate your eyes.
My finger jumps to the right.
Then.

Close your right eye and align your finger with the distant object and observe what happens when you alternate your eyes.
My finger jumps to the left.

"The obvious" happens, just as you describe for yourself - but that proves nothing about dominance, since you haven't included the situation in which both eyes are operating, Having on looked at each eye separately.

I think it's now your turn to do me a favour, and undertake a variant of your experiment, as follows...
Close your left eye and align your finger with the distant object and observe what happens when you open your left eye
For me, absolutely nothing 'happens' (my right eye is dominant)
Then.
Close your right eye and align your finger with the distant object and observe what happens when you open your right eye
My finger jumps (and becomes two fingers if I focus on the distant object).

Do you get different results from me?

This is not how the test is usually done, but it again illustrates the fact that closing one's non-dominant eye changes nothing, but that closing one's dominant one does - and the reason for that is obvious from 'the Laws of Physics' (well, really basic geometry!).

 

[SUNRAY]

"The obvious" happens, just as you describe for yourself - but that proves nothing about dominance, since you haven't included the situation in which both eyes are operating, Having on looked at each eye separately.

All the way through the thread you have been discussing closing eyes and seeing thing move around

I think it's now your turn to do me a favour, and undertake a variant of your experiment, as follows...
Close your left eye and align your finger with the distant object and observe what happens when you open your left eye
For me, absolutely nothing 'happens' (my right eye is dominant)

I see the additional finger to the right

Then.
Close your right eye and align your finger with the distant object and observe what happens when you open your right eye
My finger jumps (and becomes two fingers if I focus on the distant object).

I see the additional finger on the left

Do you get different results from me?

Blatantly yes, just like all the way through this thread.

This is not how the test is usually done, but it again illustrates the fact that closing one's non-dominant eye changes nothing, but that closing one's dominant one does - and the reason for that is obvious from 'the Laws of Physics' (well, really basic geometry!).

However what you are telling me is:

1. In your test with both eyes open you see one finger
2. In your test with both eyes open you see two fingers

Is it only me who sees a difference there?
Is only one statement true?

 

[JohnW2]

All the way through the thread you have been discussing closing eyes and seeing thing move around

Closing one eye and seeing if things move as compared with having both eyes open. You compared having one eye open with having the other eye open - that tells you nothing about dominance (other than that you do have a dominant eye - a few people don't, in which case closing eyes would make no difference)

However what you are telling me is:
1. In your test with both eyes open you see one finger
2. In your test with both eyes open you see two fingers
Is it only me who sees a difference there?

As I've been saying, forget about how many fingers you see. The only relevant question (seemingly regardless of anything else) is whether, starting with both eyes open, anything changes when you close one eye. You should find that things change when you close one eye, but that nothing changes when you close the other one.

 

[SUNRAY]

Closing one eye and seeing if things move as compared with having both eyes open. You compared having one eye open with having the other eye open - that tells you nothing about dominance (other than that you do have a dominant eye - a few people don't, in which case closing eyes would make no difference)

As I've been saying, forget about how many fingers you see. The only relevant question (seemingly regardless of anything else) is whether, starting with both eyes open, anything changes when you close one eye. You should find that things change when you close one eye, but that nothing changes when you close the other one.

The only thing that has ever happened when I do this is one of the fingers (or distant objects) disappears.

 

[SUNRAY]

1. In your test with both eyes open you see one finger
2. In your test with both eyes open you see two fingers

Is it only me who sees a difference there?

So which of you statements is incorrect?

 

[JohnW2]

The only thing that has ever happened when I do this is one of the fingers (or distant objects) disappears.

The 'second finger' you're seeing will obviously disappear when you close one eye (either eye).

The one which doesn't disappear should remain unchanged relative to 'the background' when you close your non-dominant eye, but should move relative to the background when you close your dominant one.

You really only need to 'draw a few triangles' to understand why all this works as it does - the point being that if one has a dominant eye, the triangle will be right-angled, whereas if there were not a dominant eye it would be isosceles. In other words, the dominant eye looks 'straight ahead' at an object, whereas the non-dominant eye rotates a little towards the dominant one in order to see object being viewed

 

[JohnW2]

So which of you statements is incorrect?

As I keep saying, I have no interest in how many fingers are seen.

In fact, prior to this discussion, I hadn't really come across people talking about 'two fingers', and nor can I recall having previously come across people who could not easily tell whether closing one eye did or did not alter the perceived relationship between closer and more distant objects.