These things - the degree of vulnerability, the degree of skill, the degree of the longing to give - are influx all the time, And to lump all that under the word "creativity" assumes something much more static than it is. That's why an artist may be marvelous in her 20s, and be creating automatic crap in her 40s. A writer may be trivial in his 20s, and be writing incredibly in his 50s, because those things are always in flux.