Each opening each one of those takes a few, maybe 204 hundred, 500 mill seconds. You might open up all 20 million files and then look at but it's meditatus is an ray. So we're able to very quickly stack these together into this x ray data ray that's fairly small since we've chopped it down. Once you get what you just call data do persist on the thea dask array, you just see in the dashboard of dask,. like all these clusters firing up and all this data getting processed and e up exactly.