In this given example, I would rather use a cigarette or something to make sure the actual sensor works because for all I know the test button just makes sure the alarm can sound, but not if the thing can detect smoke.
I have no parallel with this on vaccines except maybe wondering if they gave me a placebo.
In this given example, I would rather use a cigarette or something to make sure the actual sensor works because for all I know the test button just makes sure the alarm can sound, but not if the thing can detect smoke.
I have no parallel with this on vaccines except maybe wondering if they gave me a placebo.