So the key here is to appreciate that this right over here is expressing the rate of how fast the population is growing and we've been seen in multiple videos now, let me just draw, do a quick review of this notion of a rate curve. So those are my axes and this is my t axis, my time axis. And so this is showing me how my rate of change changes as a function of time. So let's say it's something like this. So once again, if I said at this time right over here, this is my rate, this doesn't tell me, for example, what my population is, this tells me what is my rate of change of a population. And we have seen in previous videos that if you wanna figure out the change in the thing that the rate is, that the rate is the rate of change of, say, the change in population, you would find the area under the rate curve between those two appropriate times. And why does that make sense?