So inflection points are where we change concavity. So we go from concave, concave upwards, upwards, actually let me just draw it graphically. We're going from concave upwards to concave downwards, or concave downwards to concave upwards. So, or another way you could think about it, you could say we're going from our slope increasing, increasing, increasing to our slope decreasing, to our slope decreasing, or the other way around. Any points where your slope goes from decreasing, our slope goes from decreasing to increasing, to increasing. So let's think about that. So as we start off right over here, so at the extreme left, it seems like we have a very high slope.