as I interpret most permissive license's, they say something like "must retain the above copyright notice, and this list of conditions.", which makes it not pos

as I interpret most permissive license's, they say something like "must retain the above copyright notice, and this list of conditions.", which makes it not possible to change the license. But you can always go "closed source", and there's nothing stopping you from charging money (which is why Business likes these permissive license's)