What does a portrait of Erica the android tell us about being human?

As robots grow more lifelike, and religious faith in our uniqueness wanes, it is a challenge to understand what it means to be mortalPerhaps the best way to think of what makes a human being human is to look at something that seems almost human and subtract the difference. Whatever is left over is what is unique to us. That seems to be the thinking behind the Finnish photographer Maija Tammi’s One of Them Is a Human #1, a portrait of Erica, the Japanese android who was declared the most re