It's certainly where the myth came from, at least partly, but specific heat is an abstract when it comes to comparing two identical designs, basicly it's saying if ALu were squashed/condensed to the same density[?](size and weight[?]) as Cu it would be better, but seeing's how that's impossible...
I think the other part of the myths origin is that ALu cools down quicker after heatsource has been removed...
|