This Amazing Computer Chip Is Made of Live Brain Cells.
Science fiction is rapidly becoming reality. The future of computing might be live neurons. It certainly adds a spin to the term "artificial" intelligence. The article shows how many neurons might be required to do some quite clever things, including a robot and a thinking computer with one million neurons.
We humans have about 86 billion neurons. The obvious ethics question is what is the maximum number of neurons that should be allowed? It's similar, in some respects, to the long held debate about what is the maximum age at which an unborn baby should, or should not, be aborted. When does a bunch of brain cells become a human...?