Increased Manual Dexterity Can Be Good, Too

Fiona has started stacking blocks. She can consistently build a tower two blocks high, which is actually a little precocious for her age (not hugely precocious, but ahead of the curve nonetheless).

She's also a fan of knocking over towers of four or five blocks that her parents put together. No surprise there.

I've been using the phrase "building blocks of..." for years; it's very cool to see actual building blocks in action.