HN satisfies the short term dopamine reward circuit for a population that is largely self moderating, monitoring and interested in the same techie type news. So

HN satisfies the short term dopamine reward circuit for a population that is largely self moderating, monitoring and interested in the same techie type news. So it is self reinforcing and content is continually accruing so you develop an urge to check back in. Email use to be this way for a lot of people, Twitter too, FB definitely, etc...