 And in order to do that, we had to put together efficacy data proving that not only is there a difference between ketamine and placebo, which is what you have to do with most drugs, but as you just saw with the massive failure of ecstasy to get approved, MDMA to get approved, the FDA said, no, if you're going to try to get approval for a drug that can have a psychedelic effect, then you can't just test it against placebo because people who don't get a psychedelic effect will know they didn't get the drug.