[pas]

You have to become an expert to evaluate the expertise of "experts".

The workaround is to try to get better at using methods to pool the wisdom of "experts", to evaluate their claims based on external attributes (eg. looking at the journal that published the paper, looking at other claims of the expert, looking at the methods used to arrive at the claims, examining the used statistical methods, etc.), see also how prediction markets force "experts" to support their confidence with their money - and of course these markets are not infallible either.