[arendtio]

So what are problems then? I mean, we live in a world where we have NP-Hard problems every day, but once you get used to being satisfied with a 95% correct solution it is no problem living in this world.

So yes, you can get used to such things and in the case of Smalltalk, it would actually harm the beauty of the language to evaluate that expression differently. Nevertheless, you could also argue that a language which doesn't respect one of the early rules every human learns in school isn't best for being used by humans ;-)

So let's just say it is not binary (just 'yes' and 'no') and PHP is just a language which happens to bring a few more unnecessary challenges for the developer (like the inconsistent function names).