21 was founded and is led by some of the most savvy computer scientists in the world, including the highly regarded bitcoin thought leader Balaji Srinivasan. They believe that making Bitcoin useful begins with making Bitcoin useful for developers, and this is absolutely a virtuous approach. We have been able to walk through many of the easy to learn sample code and approaches they have provided the community and clearly they are also great teachers.
For insights into the bitcoin computer see:
For more see: https://21.co/about/