What is the difference between new vines and old vines?

What is the difference between new vines and old vines?

Dennis Overstreet (Wine Expert) gives expert video advice on: How does the quality of grapes affect the quality of wine?; How does the weather affect the quality of wine?; How was the concept of 'terroir' developed? and more...

The older the grape vine the more it offers a reflection, it has dug down into the earth, a thirty year old vine versus a six year old vine with tendrils, being the vine that has gone down and searched for water and the minerals that are down there. It will offer something that has greater intensity. A young vine will be more subject to; in its youth, of pulling up more water in foliage and not offering the intensity. The older the vine gets the less it produces but it is sort of sitting down with a wise old author who does not have to shout at you. He tells you his wisdom, his experience in that you all of a sudden pick up the glass, it's almost like you're listening, it doesn't have to jump out and scream at you, this is not a rock concert this is almost like Yo-Yo playing his cello.