I think it's safe to assume that Krugman is a lot more trustworthy when talking about something that's actually within his realm of expertise; namely, economics.
what does it say about a person who is dismissive about the way technology can affect/influence human behavior?
what makes him an expert?
is it because he panders to what is the status quo (the ever-present monopoly of sorts)?
is it because he engages in thoughtful exploration of ideas and notions with a larger community and helps bring about great discussion?
is it because he has a degree?
is it because he has done something notable for humanity?
what does it say about a person who is dismissive about the way technology can affect/influence human behavior?
what makes him an expert? is it because he panders to what is the status quo (the ever-present monopoly of sorts)? is it because he engages in thoughtful exploration of ideas and notions with a larger community and helps bring about great discussion? is it because he has a degree? is it because he has done something notable for humanity?