Walking into the house I could hear a noise in the back room.

What’s that? I asked.

Oh, that’s just Mary (as in Poppins) our new robotic vacuum, my daughter answered. She’s mapping the house right now so that she knows where to go when I give her a command.

A little later I noticed the house was quiet.

What’s Mary doing? I asked.

She’s recharging, my daughter answered.

Mary knows…in order to do what we have to do, we have to take time to recharge.