How Do You Know if You're a Talented Photographer?

Jason Kottke on talent and photography:

“It’s interesting that you can’t figure out whether you’re any good or not from your 300 friends on Facebook, the 23 people who liked your Tumblr post, the 415 people you follow on Twitter, or the 15 people who faved your Flickr photo.”

How do you define talent? Does it even exist? Is a “good eye” another term for hard work and lots of practice?