Claim CA250:
Scientific theories are always changing.  You cannot trust what scientists
say, since it may be different tomorrow.
Source:
Response:
-  Science investigates difficult questions about unknown fields, and
   scientists are human, so it is inevitable that scientific findings will
   not be perfect.  However, science works by investigating more and more,
   which means results get checked and rechecked with further findings.
   The reason some findings change is because they get corrected.  This
   process of correction helps make science one of the most successful
   areas of human endeavor.  The people who cannot be trusted are those who
   are always right.
 
 
-  As more evidence accumulates, scientific findings become more and more
   certain.  Theories that have withstood several decades of study may
   undergo more refinement of details, but it is almost inconceivable that
   they would be overturned completely.
created  2003-3-27, modified  2003-10-23