[vladms]

How do you define "can do" ? Would answering correctly 9 out of 10 questions correctly for a type of question (like give directions knowing a map) mean it "can do" or that it "can't do" ?

Considering it works for so many cases, I think it is naturally to point out the examples where it does not work - to better understand the limit.

Not to mention that practically, I did not see anything proving that it will always "be able" to do something . Yes, it works most of the times for many things, but it's important to remember it can (randomly?) fail and we don't seem to be able to fix that (humans do that too, but having computers fail randomly is something new). Other software lets say a numerical solver or a compiler, are more stable and predictable (and if they don't work there is a clear bug-fix that can be implemented).