Ars Electronica is a big festival that happens every year in Austria, and it's all about cool technology and art!
Imagine you're at a big carnival, but instead of rides and games, there are a bunch of really cool machines and art installations. Some might make noise or move around, while others might be huge screens that you can interact with.
Each year, people from all over the world submit their ideas for these machines and installations to Ars Electronica, and the best ones get picked to come to the festival. There are also talks and discussions about technology and art, and you can learn a lot about how they can work together to create cool things.
It's a really neat way to see all the cool things people are making with technology, and to get inspired to make your own inventions and art!