On onion cutting

In the television show Masterchef there was an episode where the judges did a test on what they call “basic skills”. One of the judges often says that in order to be a “true chef”, you must know how to quickly and finely cut onions.

...This was really bothering me and I am stubborn so I wanted to win this fake argument really badly so I looked up why the way one cuts onions is important: as it turns out, the shape and even the surface area affect the end flavour. I thought the whole “chop chop chop” was about performance in the kitchen. Cut quickly to serve quickly! I was wrong.