falsifiability of scientific results  Continuous Experiments  Run experiments during survey / prototype building  Systematic experiments  observations and ideas for improvements  Don’t be afraid of throw away analytical queries. SIGMOD 2014  #15.5 Yannis Klonatos, Christoph Koch, Tiark Rompf, Hassan Chafi: Building Efficient Query Engines in a High-Level Language. PVLDB 7(10) 2014  #15.6 Thomas Neumann: Efficiently

results  refutable by evidence  Continuous Experiments  Run experiments during survey / prototype building  Systematic experiments  observations and ideas for improvements  Don’t be afraid of throw away

operator overloading (which may select a different overload than you expect). • The practice of building up output through chains of << operators inter- feres with internationalization, because it bakes