very high dimensional value sorry very high exponent you get some incredibly small number and if your number is slightly larger than one then it blows up to something big and if you go if your X even higher if you have longer documents this gets even worse and in linear algebra this is about the same except you need to think about the eigenvalues of the matrix so the eigenvalues is say how much the matrix is going to grow or shrink vectors when the transformation is applied and if your eigenvalues are less than one in this transformation you're