Given actual practical experience of e.g. Software Carpentry that's an absurd view. You actually do not need to know how "print" is accomplished. Print is not a

Given actual practical experience of e.g. Software Carpentry that's an absurd view. You actually do not need to know how "print" is accomplished. Print is not a leaky abstraction unless you go into what is (these days) an absurd scenario like a serial console.