> It's really not - if for no other reason than it's forced you to think about your system more than a simple guess would. Appeal to probability; appeal to com

> It's really not - if for no other reason than it's forced you to think about your system more than a simple guess would. Appeal to probability; appeal to common sense. > Some observational studies are crap - this is just true. Special pleading. > But that doesn't say anything about the potential quality of observational evidence Straw man. > many of the commonly raised objections to observational studies are actually objections to poorly run studies > That's a bad study. Moving the goalposts. No true Scotsman. > It's not 'No True Scotsman Fallacy' to say that the problems with a bad study don't generalize to all studies. Straw man.