A couple ‘good’ questions with commentary:

1) How far and in what directions does the ‘improvement field’ extend from a CLC?

Commentary on 1: Sometimes your sound system seems to change in characteristics without explanation. If you live in an apartment or condominium, it could be that your neighbors moved their clocks around or bought a new one. It could be that a car with a digital clock just pulled up outside.

2) As the number of clocks on the planet increases, does the perception of audio and video worldwide improve correspondingly?

Commentary on 2: A couple of years back I helped a friend install a home-theater-in-a-box system. Certainly this gear was not on par with what I had in my home, but I always wondered why the gear that cost 1/5 of another system could sound so decent in what could be considered a poor audio environment. Now I know: more clocks in their house. Instead of upgrading with HD audio or HDTV, I could just buy about a dozen $10 clocks.

Who knows what I've been missing?