A "dada tree" is actually a type of artificial neural network (ANN). ANNs are computer programs made up of many "nodes" that work together to "learn" about something. In this case, the nodes in a dada tree are arranged in a tree-like structure and learn to process data in in many different ways. For example, if you give it a picture of something, the nodes might try to identify what’s in the picture, break it up into parts, or even create new versions of the picture. When it's done, the dada tree can then use the information to make decisions, such as predicting what will happen next or giving advice on what to do.