brief essay on symmetry

loading our trays at the salad bar nicholas looks at the chunks of tofu and says can i have some

i pile it on and put the ladle down

can i have that one asks nicholas

which one i reply

that one

i make an attempt

no no no that one

i try again

no no no THAT ONE

anna says let me have a try

yes that's the one grins nicholas

later anna tells me how she knew which one it was

how

because it was the piece that was perfectly square