Rachel counts to 100 and realises she can go on. She pauses, 101. I ask how far she can go, and she stops and thinks. 134 she says, after pondering for a second. And she sets off. ….until she reaches  134. She stops and then says ‘135’. Pauses, carries on. Adds 1. 136, 137, 138…Stops again. Smiles.  ‘There isn’t a biggest number is there?’

Just add 1 and keep going. Infinity