>Sorry, but the first one is not obviously good, it's just what you're used to (the second one is indeed bad). The first one is good because its what most peop

>Sorry, but the first one is not obviously good, it's just what you're used to (the second one is indeed bad). The first one is good because its what most people are used too - there's little that can be objectively said about notation once you reach a big enough audience. I could invent a word editor that produced documents from top to bottom rather then left to right and I could invent a million reasons what it's better, but that hardly matters. Personally I don't think Polish notation is all that revolutionary for humans, it's just easier for computers; however just like anything else the human brain is quite malleable, and if you spend a year doing equations in polish notation you will come to prefer it.