An academic studying motivation in humans and video game design collated 70 or so papers on motivation in humans trying to figure out what it was that motivated

An academic studying motivation in humans and video game design collated 70 or so papers on motivation in humans trying to figure out what it was that motivated people, and apply that to video games. He found that nobody really knows, they all just describe the outcome as feedback or reward without any qualitative description. This is in his talk he did on youtube somewhere. I don't think you can build a biochemical model of internet addiction as it differs on what the content you are addicted to is. Some people can frequently check up on new recipes or different news forums and others don't at all. It can differ per topic per person. Instagram does nothing for me but means a lot to some women. Dopamine was used in the past few years to support various reasoning around behaviour and in turn justify stories about behaviour. It was closer to spiritual than scientific.