Sitting requires a lot of development, balance and strength chief among them. While L has, for some time, been sitting with supports, she’s recently begun sitting (and falling) all by herself.

Sitting brings a whole new set of possibilities. The ability to entertain herself by picking up things she sees around her is a big plus when everyone’s busy. The promise of crawling emerges when L leans forward and puts a fair amount of weight on her still-weak arms. Sitting is the first step toward mobility, for it means a much-expanded horizon for the Girl — much to see, much to tempt…