>Some things can only really be tested in artificial environments. What exactly do you think will be tested in that artificial environment when the environment

>Some things can only really be tested in artificial environments. What exactly do you think will be tested in that artificial environment when the environment itself (with what I'd hazard to guess quite a list of specifics, many of the "subtle and implicit, but influential" kind) is a central variable of the test? If an observational study of this kind is deemed hard/improbable/impossible to set up - how hard do you think it is to get the artificial setup right? To account for - or even identify - all variables and preconditions? This is so easy to mess up and end up with basically meaningless data. (Yeah, I know - that doesn't mean it won't be published. Everybody raise your hands and shout "Replication Crisis"! :) )