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Old 04-24-2018, 08:45 PM   #31
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Default Re: Human-octopus barter

Maybe they would like puzzles?
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Old 04-24-2018, 09:10 PM   #32
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Default Re: Human-octopus barter

Finally, a way to dump all those warehouses full of Rubik's Cubes.
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Old 04-26-2018, 05:01 AM   #33
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Default Re: Human-octopus barter

Probably they would, yeah; and something like a warehouse full of rubiks cubes would last near forever.
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Old 04-26-2018, 12:34 PM   #34
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Default Re: Human-octopus barter

They would be a much higher difficulty from them though seeing as how most octopuses are colorblind. Ha.
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Old 04-26-2018, 12:40 PM   #35
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Default Re: Human-octopus barter

Quote:
Originally Posted by Flyndaran View Post
They would be a much higher difficulty from them though seeing as how most octopuses are colorblind. Ha.
It seems that while octopodes lack colour-sensitive photoreceptor differentiation, they manage to distinguish colours using a purely 'software' method (analysing the difference in diffraction/blurring between different wavelengths). (One would expect them to have some way of distinguishing colours to enable their top-tier chameleonic abilities.)
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Old 04-26-2018, 02:02 PM   #36
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Default Re: Human-octopus barter

I vaguely remember seeing experiments where their inability became evident. They use color density to "guess", but using colors that are obvious to us but similar to them caused them to unintentionally create very clashing "camouflage".
I don't know if colorblind people could make out classic Rubik's Cubes.
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Old 04-26-2018, 07:26 PM   #37
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Default Re: Human-octopus barter

Quote:
Originally Posted by Flyndaran View Post
I vaguely remember seeing experiments where their inability became evident. They use color density to "guess", but using colors that are obvious to us but similar to them caused them to unintentionally create very clashing "camouflage".
I don't know if colorblind people could make out classic Rubik's Cubes.
Here's a reference
https://gizmodo.com/octopus-eyes-are...ned-1783195433

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Old 04-27-2018, 11:43 AM   #38
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Default Re: Human-octopus barter

I have to say that one of my favorite aspects of these forums is the rabbit holes of knowledge we find to explore.
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Old 04-29-2018, 02:36 AM   #39
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Default Re: Human-octopus barter

There's a video from PBS on Youtube (SciShow, IIRC) talking about how they can use light aberration to fake color vision with only one receptor set, thanks to the oddly shaped pupils. It doesn't provide color in all dimensions, tho'...
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Old 04-29-2018, 02:51 AM   #40
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Default Re: Human-octopus barter

That was what lwcamp's link was about.
Though that link said it was an as yet not fully proven theory.
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