Outside barber shops there is a pole with spiralling red and white stripes, frequently with a brass or gold ball at one or both ends, and in many places it…
There is an assumption that things used routinely are understood, and it does not hold in general.
A great many effective interventions were established empirically — somebody noticed that something…
There is a phrase that gets used dismissively — that something is just a placebo — and it carries an assumption worth examining.
The assumption is that a placebo response…