'really? You've been quiet for a long time. It looked like you were having a difficult thought.'
I think Ella might be kind of similar. She lives in her head. She will happily spend 20 minutes examining her toes or a wooden spoon or the pattern on her sleeve before she looks up as if just remembering that there are other things in the world than her toes or her spoon and gives the biggest, happiest grin ever. She's not interested in rolling over. It's not that she can't, she can, we've seen her. One day, while Ammie was determinedly trying to move from back to front as she had been for a week, Ella just did it. Just rolled over, no practising. She lifted her head up, looked around, smiled then rolled back over. And that was that. A week later Amelia managed it too and she's been doing it every 30 seconds ever since.
*photo of Brighton, just because.