Yvonne stood under the eaves of a wood in the dark ages, processing the data of the sunlight on her surface.  She mused that if she had the capability, she would have missed the sun's feel on her skin.  The UV index was lower now, and the air was pollutant free, it was perhaps a shame to be returning to the twenty first century but she had to.  She stood, waiting for the Doctor to turn up.  If she was human, she would feel anticipation.  But she just stood.  Waiting.