Functional details can’t be copyrighted, but once you’ve seen a copyrighted implementation, it’s an argument in court over similarity and function.
A clean room implementation by people who haven’t seen the original work means there can be no discussion of copying, which makes it much cheaper and more reliable to fight an infringement claim.
A clean room implementation by people who haven’t seen the original work means there can be no discussion of copying, which makes it much cheaper and more reliable to fight an infringement claim.