How would you know? - for all the 30 days you have been listed? Knots are pretty interesting. Why? Well skills for one. Get stuck, practice a new skill - one knot per session. Knots are also pretty useful if you get stuck outside ~ http://www.flickr.com/photos/bootload/sets/72157623445003205... hiking ~ http://paulgraham.com/addiction.html

Knots are also pretty interesting maths wise ~ http://en.wikipedia.org/wiki/Knot_(mathematics)

As someone who dislikes all the facebook posts and apple and whatnots that aren't really hacking, this is an amazingly awesome post and I wish there were more of these things on HN.

You can say the site is going downhill or that it is in a slump but this kind of post is exactly the opposite of the posts that I think are non-hacker news. I would much rather see 100 how to tie special knots, how to quickly repair an engine or something along those line posts over another facebook privacy post (though those are indeed almost non-existent now).