The British Constitution can be seen as a large piece of legacy code which has never been tossed and rewritten from scratch, just incrementally patched and refa

The British Constitution can be seen as a large piece of legacy code which has never been tossed and rewritten from scratch, just incrementally patched and refactored over a really long period of time. Downside: lots of bizarre complexities, bits of dead code, stuff that works as long as nobody touches it etc. Upsides: it's really stable.