If someone were to post an article on HN about a new technology that gets recursive compression (you can compress something 80%, and then do that again and again) because "they have a new algorithm", they would be laughed off the front page.
Edit: You didn't clearly get what is claimed here. 'Infinite detail' is just a marketing speech, the claim is that the algorithm can render up to screen resolution any data set whose size is limited only by memory. I.e. rendering speed isn't bounded by the size of the data set. The method has nothing to do with compression, and indeed the data set will be huge if everything is 'infinitely' detailed.