human in computer world

We have been talking about the reinforcement learning a lot, especially after Google's deep mind defeated human Go players.

In another angle, how to really describe a human in a computer world? How can the human grow from infant, to toddler, to youth and adult?

What are the environment? What are the reward/feedback?

If we could record a twin's growth path, mainly image, audio, sensory, etc, that will be cool to analyze, model and create a virtual human growth trajectory.