one particular pattern so they have i think that's a pretty it's a pretty smart experiment they look how many bars do we need to add how many of these bars in the soft max distribution do we need to add to reach 90 percent right so it depends a bit on the temperature of the softmax which is hardcoded and attention mechanism pdb is one this squared over d um so they say how many do we need to add to get to 0.9 to 90 percent of the mass of this distribution and if this is the hopfield network where you retrieve one pattern