I own a dozen decks of cards and know exactly how each one of them shuffles, feels, and plays, even in the box
If you gave me one of them blindfolded and let me feel and shuffle it I would know which one it is
I know close to everything (non-complicated sciency stuff) about the Boeing 787 Dreamliner
I can also explain (in great detail) why Boeing is perfectly safe and no more dangerous than any other company (that was sparked by the whole door plug debacle back in January)