[Y_Y]

Why not both?

Copyright certainly matters. It's a big deal legally and economicically all over the world.

Suppose that it's just a bad idea and shouldn't exist. Does that mean that I should release my code into the public domain? I think you could make a good case that even being totally opposed to copyright morally or pragmatically or otherwise, given that it currently is enforced in many places it's worthwhile to play along. For example, some people would prefer a world without copyright, but GPL their code, because it might prevent a greater evil.

[dcow]

Exactly. The copyleft side of me says you can't copyright instructions on how to bake a cake, or a fast route across a city, or a beautiful way to display colored pixels in a grid, or an efficient compression scheme for video data... because it's all intellectual, and not physical, "property". But society disagrees so a nice hack on copyright that perpetually keeps any of the above from being stolen and locked down by profit seeking psychopaths just early enough to the scene to make a buck, seems like the best interim solution.

[runnerup]

I really appreciate yours and parents line of reasoning.