Yeah, you're still wrong.
Your analogy doesn't hold true, because you're not trying to wrap your feet around something to grip it - as you would with your hands.
Your feet perform the same gripping function on the flat sole of the shoe as they would on the flat floor. Except you have an extra layer of rubber grip against the floor and some level of protection from the material over the foot.
Unless you've got some really weird monkey feet and lift while clinging to a bar or something...
"i can barely click the link. but i way why stop drinking .... i got ... moe .. fcke me ..im out of it" - GDA on Traditional vs Modern Wushu
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but what if the man of steel hasta fight another man of steel only that man of steel knows kung fu? - Kristoffer
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How do you think monks/strippers got started before the internet? - Gene Ching
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Find your peace in practice. - Gene Ching