Re: "Statistics are what they are. I don't know why scientists would feel any pressure in an anonymous survey."
I wouldn't go to a chemist to answer philosophical or historical questions. Experimental sciences (i.e. physics, chemistry, etc.) use different criteria than philosophy and historical sciences to come to their conclusions. Problems occur when experimental scientists try to answer questions not suited to their training. Why would you even care what a chemist thinks about theology or philosophy? That's sort of like asking a gardener to fix your car.
Aside from that, the bulk of scientists who thought differently were probably weeded out and fired before the survey happened. I don't think you would have the same numbers if you extended the time frame of the survey into the past.
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