One question that scientists get asked a lot is; how far away we are from creating artificial intelligence? The answer depends of course on what we mean by intelligence but if we are talking about something that is an artificial version of man then the answer is unfortunately (or perhaps fortunately if you grew up watching Terminator) we aren’t even close.
The main reason for that is the human brain. While we are now able to grow ears on mice and create artificial internal organs we are a long way from building a brain. The average brain contains around 100 million neurons connected by a quadrillion constantly changing synapses. Although it uses less energy than is needed to power the average light bulb, if you attempted to recreate this with the computing power available today you would need a nuclear power plant to run it.