connected to this particular node and also to this particular node so we're now trying if we have node i right here we're now trying to not connect it to all of these nodes but we'll say we'll just select sum at random and then connect it to that okay this is what we call random attention and you can pretty clearly see if you connect each of the i nodes to r equals two to two random nodes then you don't have an n squared anymore but you'll have a like an o of r times n which you know if r is a constant is an o of n