djconklin said:
The statement: "Unfortunately in some fields of science experiments to prove or disprove a theory decisively are not possible: e.g. string theory, evolution, etc." is quite correct. There is no way one can disprove either theory at this time.
This is not completely true. Some aspects of string theory are falsifiable, though it is up to date weather string theory as a whole is testable.
Evolution on the other-hand could be proven false, in fact many creationists continue to try to prove it false! ID on the other hand is completely un testable!
Ways to falsify evolution (from talkorigins):
* a static fossil record;
* true chimeras, that is, organisms that combined parts from several different and diverse lineages (such as mermaids and centaurs) and which are not explained by lateral gene transfer, which transfers relatively small amounts of DNA between lineages, or symbiosis, where two whole organisms come together;
* a mechanism that would prevent mutations from accumulating;
* observations of organisms being created.