A “foil” is a physical concept - the analog outside of water being an airfoil or airplane wing. It’s just something that creates lift based on an angle. Im not

A “foil” is a physical concept - the analog outside of water being an airfoil or airplane wing. It’s just something that creates lift based on an angle. Im not familiar with this stuff but as mentioned airplanes, sail boat sails, sailboat foils, and the water sporting “foil” all leverage the same principle. Am not sure how the sport works really and got lost in the jargon. Am curious to know more about why these hooks exist but didn’t really like the writing/voice of this article to dig deep