As we walked from NTUC in Hougang, daughter D notices a crack in the paved walkway.
"Amma, the Earth has cracked, " she declares solemnly.
"That's just concrete, sweetheart. It is not exactly the earth.", I try to explain.
"You mean someone built this?" she queries.
My affirmative answer results in a silence of a minute, after which she asks, "Amma, what did they stand on, when they built this?"