Is my grandson a time-traveller?

What are they teaching them at child care nowadays - quantum mechanics? Or is my three-year-old grandson some kind of infant Time Lord?

Having nailed the concept of space-travel (see my post dated 16 April) he is now contemplating its relationship to time-travel.

We were returning from a trip to the local library where he had been playing with another little boy.

“How old was that other boy?” I asked him

“Four”, he replied.

“And how old are you?”

“Three”.

“How old will you be next birthday?”

“I don’t know”.

“Well, what comes after three?” I hinted.

“Four”, he said

“That’s right," I said. "You will be four next birthday.”

“Will I get presents?” he asked hopefully.

“Yes", I said. "But you will have to wait a long time. Your next birthday is a long way away.”

"I will go in Daddy’s car then.”