How technology changes art

I appreciated what George Lucas said about how technology changes art.

"Painting, music, any kind of art form is essentially technological. The most important part is to be able to communicate emotions. I liken digital technology to going from fresco to oil painting. If you are doing a fresco, you needed about at least two dozen people. It was done by candlelight, and it was very hard to do. But if you use oil paints, you can go outside. You can see the light play on your subject, which completely revolutionized art. At the same time, if you don't like what you're doing, you can paint right over it and start over. You can't do that with frescoes. It used to be [with] film, you went out and shot it, whatever you got was what you got.  With digital technology, we can go in and shoot it, the way you would an oil painting. Then you can go back to your studio and touch it up. You can completely manipulate it. It's much more like a painting than it is like photography."