> you have to admit to the possibility that it does not exist > we are in a situation where there is no direct evidence that it exists. Therefore, it might not

> you have to admit to the possibility that it does not exist > we are in a situation where there is no direct evidence that it exists. Therefore, it might not. You are moving the goalposts. No one denies it is possible that none of these dark matter candidates exist. > not finding something in an experiment _is_ evidence it does not exist Which "experiment" are you referring to? This is only true if you would expect the experiment to detect such a thing.