Rounding error Memes

Looking at those monitor refresh rates is like watching your paycheck after taxes. 239.99 Hz down to 239.97 Hz? Great, there goes my 0.02 Hz. Probably lost in some floating point rounding error along with my will to debug it. And don't get me started on that 120 Hz that's actually 119.88 Hz. Marketing department strikes again - "it's basically 120, who'll notice?" The same people who notice when their coffee is lukewarm, Sharon.