OOP is dead (part 2)

A second and even more severe reason why OOP has reached it's peak and more and more people are looking for alternatives is mutable state (I'll write only 'state' from now on). Most programmers don't even think much about state, they simply take it as common part of programming, but in fact it's the source of most bugs and difficulties in programming. So what's 'state'? It's the current value of a