Comment by HarHarVeryFunny

True, but the human isn't allowed to bring 1TB of compressed data pertaining to what they are "redesigning from scratch/memory" into the clean room.

In fact the idea of a "clean room" implementation is that all you have to go on is the interface spec of what you are trying to build a clean (non-copyright violating) version of - e.g. IBM PC BIOS API interface.

You can't have previously read the IBM PC BIOS source code, then claim to have created a "clean room" clone!