Software optimization is at the same time boring and funny. 5 minutes of profiling, adding a cache, and – bam! – a 30% reduction of running time. I would add some more performance enhancers, but on the other hand b̶r̶e̶a̶k̶f̶a̶s̶t̶dinner at Leefcafé Het Spiegelbeeld and Live optreden bij Café Dommel 18 met Ferry de Lits.