Though the line of best fit seems to fit well to an exponential for now, it is likely a sigmoid in the end [0]. The real trick is figuring out when you've reach

Though the line of best fit seems to fit well to an exponential for now, it is likely a sigmoid in the end [0]. The real trick is figuring out when you've reached the 50% mark, as any physiologist will tell you! ;) Also, I might as well mention that I'm a recent bio-eng grad that posts in the 'Who's hiring?' threads still. Details in my profile page. And, sorry to be so blatantly self promoting. [0]https://en.wikipedia.org/wiki/Sigmoid_function https://en.wikipedia.org/wiki/Sigmoid_function