[ExI] Best optical illusions 2021

[William Flynn Wallace]

thanks, bill k !!

On Wed, Dec 29, 2021 at 7:02 PM BillK via extropy-chat <
extropy-chat at lists.extropy.org> wrote:

> The Best illusion of the Year Contest is a celebration of the
> ingenuity and creativity of the world’s premier illusion research
> community.
>
> <http://illusionoftheyear.com/cat/top-10-finalists/2021/>
>
> Seeing isn't believing!
>
> BillK
>
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> extropy-chat at lists.extropy.org
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>
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