Computable Document Format (CDF) - Wolfram Alpha

I stumbled upon Computable Document Format - <a href="https://www.wolfram.com/cdf/" target="_blank" rel="noopener noreferrer">Computable Document Format (CDF) for Interactive Content</a> . I'm really excited by the idea Wolfram Group has come up with. Be it .docx or .pdf or .pptx or any other document format - they do not allow interactivity with the user. The information flow is only one way. CDF offers interactivity with the documents. Go through above link to know more about CDF.

How do our CS engineers look at this innovation? Can anyone decipher what's going inside the CDFs? 😀 Share your views on how can CDF be used and what other problems it solves.