[Southack]

"How would we demonstrate 'guidedness'? If a stream follows the shape of letter S or something else sort of 'intelligent', do we say it's guided?"

No, if the stream is being guided by a fireman at a fire, then it is being intelligently directed/guided.

On the other hand, if no intelligent entity is controlling it, then it is unguided.

[Lev]

No, if the stream is being guided by a fireman at a fire, then it is being intelligently directed/guided.
On the other hand, if no intelligent entity is controlling it, then it is unguided.

We agree on this - the test for 'guidedness' is whether there is an intelligent 'guide'. Is this stream guided? Ok, let's see if there is a fireman directing it.
Which leads to the following question - when we ask about evolution why shouldn't the test be whether there is an intelligent 'guide' controlling it?