As someone who is not great at visualizing this stuff, I appreciate how well this video illustrates the concept. I also appreciate the effort he was willing to put in to avoid buying a bell.
Maybe I'm lucky, I work for $LARGE_CORP_WITH_GOOD_BENEFITS and Aetna covers a non-tiny number of independent mental health practices with a small copay per session. Are there many companies with therapists on the payroll? I can't imagine feeling comfortable in that setting.
It's generally accepted (at least by those who allow google to shape their worldview, which is pretty much everyone except maybe you) that there is a difference in degree if not in kind between spam and promotional emails.
That's not true, they maintain them as a backup in case you corner a customer service representative on the phone and they are about to have to do what you asked. That's when they tell you you need to visit a branch.
This is an interesting idea because it seems like it could be true and we've just never noticed. I'm not sure how you'd go about designing a study but I guess it would be easy to find volunteers.
Off topic but is it petty to pet peeve about the phrase "by extension"? As far as I can tell it's just a better-sounding way to say "so I'm going to assume".