A user interface evolves based on learned idiosyncrasies and collected data of a user. Learned idiosyncrasies and collected data of the user can be stored in a knowledge base. Information from the surrounding environment of the user can be obtained during learning of idiosyncrasies or collection of data. Thought-based statements can be generated based at least in part on the knowledge base and the information from the environment surrounding the user during learning of idiosyncrasies or collection of data. The thought-based statements serve to invoke or respond to subsequent actions of the user. The user interface can be presented so as to allow for interaction with the user based at least in part on the thought-based statements. Furthermore, personality nuances of the user interface can be developed that affect the interaction between the user and the user interface.