To become an expert in any field usually requires a great deal of study and experience. In most professions or any occupation for that matter it is not acceptable to make false claims,or knowingly mislead people.Therefore when you are relying on information supplied by company executives who in a previous life would have been snake oil salespersons, how can anyone claim to be an expert in making investments, I guess that is why I am a lay person - I dont know the answer.

How does an expert identify a half truth or non truth , without insider information.