As he says:
And that\’s an extremely good way to die, drop the sails or lose all the skin on your hands while attempting to raise a sail.
All those bits to the side are tools, tools created over generations of experience, to allow you to raise the sail without doing any of those things.
No, really, us Goyim did work out the occasional thing, you know?
Update: So, from the comments it appears that he knows more about sailing as well as more about economics than me.