Just smoked the last of my herb and I was watching Drugs Inc. Anyway, I was thinking about creating a piece of software that runs a simulation of how a plant would grow with different levels of light, type of soil etc. So you estimate the best growth for your plant increasing yield and potency. Just a thought
I played this a while back. HighGrow 4.20 FREEWARE Version - Legal Marijuana Growing HighGrow encourages people to grow their own marijuana in it's virtual grow room and guarantees that the growth of it's virtual plants will closely resemble the growth of real plants, Slick Software will not be held responsible for encouraging anyone to grow real marijuana.
I think there's just too many variables to do this accurately. Strain, type/wattage of lights, soil/soil substitute, amount of nutes, space, training (last, scrog). There's just too many things that would be different with every grow to make something like this with accurate results.
It wouldn't need to be accurate just to give an insight on how the plant may grow allowing you to plan ahead.