Well some things are about as certain as you can possibly get. The speed of light is 299,792,458 metres per second. London and New York have three thousand miles of Atlantic Ocean in between them. The digits in every row, column and 3x3 box in a sudoku sum to 45. password
, qwerty
, letmein
and 123456
are bad choices of password.
Sure, some things are not so certain, but if you want to argue that something (such as evolution for example) falls into that category, you need to make sure that the case you are making to that effect is coherent and factually accurate.
The problem with unqualified people attempting to challenge scientific theories is not that they are unqualified per se, but that they are much more likely to make mistakes that invalidate the legitimacy of their critiques.
For example, they may claim that scientists do things that they do not, or that they do not do things that in reality they do. When a scientist studying evolution professionally says âWe do Xâ and a naysayer confidently asserts that âevolutionistsâ do not do X, the naysayer is either not getting his or her facts straight, or else accusing professional scientists of lying about what they do for a living. In the former case, the naysayerâs claim can be summarily dismissed; in the latter case, the naysayer needs to provide credible evidence to back up their accusation of lying, otherwise, again, their claim can be summarily dismissed.
Or they may be critiquing an outdated or inaccurate description of what scientists actually do, or even an outdated or inaccurate description of the theory itself. Or they may be claiming scientists overlook various facts and evidence when in reality they have fully accounted for that very evidence. Or they may be attempting to challenge a description of the theory or its methodologies that is over-simplified and therefore inaccurate.
The fact of the matter is that subject matter experts are familiar with the evidence that supports their theories, with the laboratory and field procedures that they use, with the protocols that they follow, with the assumptions that they make (if any), with what needs to be done in order to challenge those assumptions, and with the practical applications that their theories find in industry. Anyone who wants to challenge their theories and findings needs to be able to address this body of knowledge and to point out the places where it is fallacious or misapplied. It is unlikely that anyone without the necessary level of training and subject matter expertise will have the requisite knowledge and experience to be able to do so with any credibility.