yes, i believe in growth cycles and terminal length. growth cycles i think are easily understood because as our hair grows, it doesn't grow out evenly. some are growing, some are resting, some grow faster than others, etc.
terminal length is always the hot-button issue.
i personally know a white girl who has not been able to grow her hair past shoulder length since i've known her. as a little girl she was about APL. when we shared a dorm my freshman year, my hair was already growing out from the cut i got at graduation. her hair was at shoulder length during graduation. from August to May my hair grew and hers didn't. i was still relaxing every 8-12 weeks and i was a heat fanatic (flat iron/curling iron EVERY day). the only heat she used was a blowdryer, and not every day either. she didn't color her hair, she used higher-quality products, she slept with a satin bonnet... i swear her hair didn't budge from shoulder-length. she finally gave up and cut it into a bob again.
maybe if she had done a few other things she MIGHT have retained more length... but i think she is proof that everyone has a terminal length and i personally doubt she would ever make waist length.
(of course i don't know her total reggie and i wasn't up in her head looking for damage or split ends either. i'm not saying i know everything...)
that being said... i compare it to body type/weight loss. even if Queen Latifah loses a good amount of weight i doubt she will ever be shaped like Halle Berry. does that mean she shouldn't try to reach and maintain a healthy weight?
OF COURSE NOT! shoot i may not ever reach waist length either, but at least i'll know how long i can grow my hair and still have it healthy, thick and beautiful. i'm not gonna throw in the towel and say all black women are doomed to ear-length hair, just like i wouldn't say i'm overweight cuz all black women are doomed to be big and overweight.
i think that is the point of LHCF. not for everyone to grow hair to their ankles, but for everyone to try and reach mini-goals in the hopes that we will discover our terminal length is something much longer than we would've ever thought otherwise.