Bullshit, Bill....opinions don't necessarily contain understanding, or complete facts...usually limited, cherry picked tidbits which only re-affirm the limited bias of the holder. Because of the reluctance of those who seek the whole truth about anything, which requires actually expanding one's view, which may include actually having to admit that you didn't know it all...and you might have been laboring under false pretenses, and can't bring yourselves to ever admit that your opinion was based on the incomplete...and your pride and stubbornness prevents one from having to admit that you were wrong.