for awhile but I think it's on its way out again now with with transformers so Ellis Tim to be clear is a kind of recurrent neural network it just houses more sophisticated cell inside and it was invented originally in the dark ages on stone tablet that has been recovered into a PDF that you can access on Sep hawk right there's a server III kid but seven and you're gonna both grade I enjoy they're both quite a bit but they did a bunch of amazing work in the 90s that was really well ahead of its time and and often get neglected and