Your analogy textbook <-> mathematical software does not hold. Think it through. It's not a copyright issue. I can explain in detail my point of view if you lik

Your analogy textbook <-> mathematical software does not hold. Think it through. It's not a copyright issue. I can explain in detail my point of view if you like. It's not a noble pursuit when the gain is too one-sided. Wolfram and his company would accrue to much material advantage at the expense of an open and public mathematical discourse. This much is plain to see, watch out for rhetoric of the kind on display in that post!