Howling:What causes silence to fall?

exactly. what causes silence to fall? we know there are cracks in the universe, and several episodes claim silence will fall as well as Pandorica Openings and the cracks in time we know will be created. but there is no absoloute things that causes silence to fall, is there? you might say the TARDIS explosion causing cracks and the cracks cause silence and all that, but silence fell BEFORE the TARDIS blew up.

so, any theories?Ooiue 20:26, June 23, 2010 (UTC)