Keep Your Head Up
There is no such thing as a machine which has evolved into it's current form. Every mechanical thing which functions, does so because someone built it from parts. Someone had to design and manufacture all the parts which went in to making that machine, and in almost every case, there was a plan for the finished product. People don't build machines unless they want to see them perform some function, and there is always a specific set of functions in mind for which every machine is built.
In other words~ You may kill a rat by dropping a typewriter on it from your apartment window, but that doesn't mean that your better rat trap wasn't designed to write love letters...
In other words~ You may kill a rat by dropping a typewriter on it from your apartment window, but that doesn't mean that your better rat trap wasn't designed to write love letters...