A European and an American plan to meet for lunch

'So, vhen do you vant to meet for streusels?'

'Hmm, I'm feeling we should meet... let's say, 1 o'clock?'

'Vun o'clock! Are you mad? That's in the middle of the morning!'

'What are you talking about, are you some kind of idiot? 1 PM!!'

'PM? Vhat is this PM? You say 1 PM? Vhat is PM?'

'In America, we have a cyclical notion of time. You Europeans think of time as one long linear evolution, every instance different from the last but getting higher and higher. We Americans recognize that time... comes back to itself, that the universe is not some infinite abyss, an endless stream of moments without any meaning.'

'Vell little do you know but that is because you are still in your mother's vomb.'