A quote from demize's twitter:
"We calculated that over 30 years of work has gone into BF3 since the beta."
Obviously he means 30 years in man hours... if he is correct. So the total amount of time everyone on the DICE/EA team have worked on the title since the beta (probably when the build we are playing was ready, so early August) equals 30 years. That's according to Demize.
What do you all think?