And this guy ran into a demonstration of something called verbal overshadowing, which is they they give people a problem. And it's a problem that is hard to solve logically, you're not going to, you're probably not going to hit on the answer if you just go through all the different possibilities. But if those people who are working on the problem describe what they're doing, sort of think out loud, they never can come up with with the solution. Because what they've done is they've put all their energy into the left side of their black brain. They're totally working with thought and when they do the right hemisphere, this hemisphere of insight of integration of sudden understanding shut down made a whole bunch bunch of little you know sort of brain teasers which he called compound remote associate problems are crap. So, knee later changes to CRA. We started publishing in journals. In a CRA word puzzle, the subject is given three words such as pine, crab and sauce, and asked to think of a word that can be combined in all three. Some people may already have the answer. It's apple, pineapple crab. Apple applesauce. They're given about 30 seconds. And sometimes you can get it just sort of going one at a time and thinking, what fits with this, what fits with this. But there's another process that happens. People who do crossword puzzles or any other kind of puzzle, are familiar with this, where you look for a while you work on it for a while. And then you let the mind relax, or you walk away and come back. And all of a sudden, the answer is right there. And what they found is that when the, when you reach an impasse, illogical impasse, the there I'm not going to get into all the different parts of the brain that are talking to one another. But basically, an area in the areas in the right hemisphere begin to branch out. And there's all sorts of stuff that we'll never know, consciously. But an answer can be found. When there's the right relaxation, all of a sudden, that answer is presented to the prefrontal cortex to our conscious mind. And we have it with no idea of how it came. Just all of a sudden, it popped into my mind.