Rosencrantz and Guildenstern are Dead Act I

I think that this play is very strange so far. Pretty much, two guys are tossing a coin a bagillion times and it lands on heads every single time. Imagine that. Its pretty postmodern that these two guys are talking about how the coin lands on heads every single time. That is so random and strange, it has to be postmodern. Also, talking about how fingernails have to be trimmed is very strange. So, I thought that it was postmodern. I don't really understand why the author included this prelude to the real hamlet, it doesn't make any sense. Maybe that is another postmodern element. I really don't know, I'm just speculating. Which is good sometimes, I guess.