Some bad arguments from authority

Argument 1:
Only a minority of scientists believe that the speed of light is 299792458 m/s.
So, probably, the speed of light is not 299792458 m/s.

Argument 2:
If you asked most mathematicians about their credence that the 20th digit of pi is 4, they'd say it's 1/10.
So, probably, the 20th digit of pi is not 4.

Argument 3:
Only a minority of mathematicians believe Bayes' Theorem.
So, probably, Bayes' Theorem is false.

:-)