Was not supposed to be public, we just let it out for select users today... Feel free to try again tomorrow.
How does it decide what search queries to run and which results to use? Any chance you could append the top sources to the output, maybe even highlight which claims are based on which sources?
Following that thread of thought, I'd love to be able to filter out commercial websites and blogspam as sources, or limit it to scientific publications and .edu/gov domains.
Nonetheless, this is a damn promising line of R&D.