Potential and Explore
As a designer, we have to try different media, material to optimize our design.
Sometimes we have to force ourselves to try something new. Because some media may have a great potential or great value, but hasn’t been discovered. If you discover it first, you can earn from it.
Captcha ad is a new kind of online advertising. Captcha is a test used in website as an attempt to ensure that the response is generated by a human. In 2009, someone explored it and found there was a great potential/value in doing captcha advertising. This is a example of exploring the potential.