Is technology a good thing?

In a New York Times Opinion blog, We Are Merging With Robots. That’s a Good Thing, professor Andy Clark outlined some of the realities of this technological world. The first bullet point had me thinking:

“Artificial intelligences already outperform us at many tasks and are now able to train themselves to reach competencies (in restricted domains such as chess or Go) that we can barely comprehend.”

Artificial intelligence can be alarming because we can barely comprehend it. Our brains are magical in all sorts of ways but we just can't compete with artificial intelligence when it comes down to board games.

But most of the time we forget the world itself is more complex than us too. The world can outperform any individual person. We constantly create and use things we barely understand. Why isn't this alarming? Is it a good thing, always?