> I guess that makes sense in the context of large-scale data research It makes the least sense in that context imho, as any optimization leads to larger diffe

> I guess that makes sense in the context of large-scale data research It makes the least sense in that context imho, as any optimization leads to larger differences the more data you process. Any performance difference is multiplied by the amount of times that code runs, that's why people look closer at hot loops than init code that runs once at startup.