interesting thread POB. i caught some of the discussion in the chat.
now here's the broscience aspect:
when i was away at "college" i trained pretty hard for 2 1/2 years straight and went from like 160-180lbs in that time.
once i "graduated" i stopped training for a year-year and a half and lost about 10-15lbs. well, the time came when i decided to go back for more "education" and gained back everything i lost in a matter of 6 months.
now i'm not very edumacated to all these scientific terms and theories and studies, but i do know that i packed on what took me 2 1/2 years to gain in the first place in a matter of 6 months as soon as i picked up the weights again after a year and a half layoff...
IMO "muscle memory" is very real, i just think there could have been a better term for it