I read in many places that the age of a link influences how much juice is transmitted. If let's say it starts from 50%, in 3 months is 90% and in 6 months is fully 100%. So, assuming that the web page's strength stays the same, you'll have in 6 months double the link juice coming from that page. Please note that all the numbers are random. But anyway, we're going offtopic.
So, are links attributes updated in bulk? Are in fact the famous Google dances and
PR updates in fact bulk updates of the links?