can someone explain to me the water bottle cut test? I've seen a lot of them on youtube but im not quite sure what they are trying to prove, espeically when they cut thru only 1 small bottle. is it that their knifes are sharper then water? more then half the time both sides of the bottle cut go flying so its not really cutting cleanly without any resistance thru the bottles either. is it suppose to show technique? how fast you are? how good the blade is? I am confused

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