most simple design of a permanent magnet motor. what are the odds?

[kelloggs]

you also have to pull current-carrying coils apart. the difference is you have to put electric energy in the coil AND mechanical energy to pull them apart. with permanent magnets you only have mechanical energy

[ionizer]

No thats not true either.
Go deeper for the real answers.

You are looking at the paddlewheel whilst you should look for the flow of water that makes it turn

[kelloggs]

the field lines are my water

[ionizer]

Fieldlines do not contain energy unless you move them.
And even then they only convert energy frome one form to another

[kelloggs]

thats why i move the field lines with mu-metal. to bring a difference in the strength of the field line current. thats where the paddlewheel should tap in and start to turn. the paddlewheel is in my case another field line source.