I was thinking about this last night when I was sharpening a multitool, the Ozark Trail tool from Walmart. I got it a lot sharper than I thought I was going to be able to. It was cutting thin receipt paper, and newspaper with ease.
Not quite shaving sharp, though.
But I never care to make my blades shaving sharp. I see no need.
So, how sharp do you like your carry blade?
Cut paper? Shaving sharp? Vorpal? Able to split atoms? Able to sever a 'silver cord'? So sharp it could sever a teen girl's love of her favorite boy band? (Note: that last one has never been achieved in all of human history).