Interesting, so if it holds that cognitive fatigue shows up from interacting with content over long sessions, it means that sites that optimize for engagement could end up draining people and reducing the quality of their interactions.
If this holds true across all social media platforms, this explains a lot.
My goodness I hope that HN is different in this respect, but perhaps I am just engaged in wishful thinking here.
Credit to these guys for stepping out in front of the most glaringly obvious shortcoming of the study. I was hoping the Reddit admins would have given them access to data that they would then retroactively ask the users’ permission to use.