Is Artificial Intelligence Possible?
"Artificial Intelligence is impossible because computers will never be able to think and behave in the same way as human beings."
Artificial intelligence (AI) is a young interdisciplinary field of research that combines cognitive science and computer sciences. A good general definition of its aims was made by Professor Aaron Sloman in Computers and Thought (1989, MIT Press): "AI is a very general investigation of the nature of intelligence and the principles and mechanisms required for understanding or replicating it." This essay aims to make a critical analysis of the title, taking into consideration any relevant views held by experts in the AI field. It also aims to illustrate some of the major philosophical stumbling blocks that occur in the arguments.
AI is a field of research that has captured the public eye. If AI were possible to the standard of human intelligence it would have a massive impact on our society and lives in general. Consider that at present automation is limited to repetitive, mundane tasks and this alone has slashed the number of jobs in industry. Then consider the advent of automated systems which have intelligence: they could be used in literally any niche of presently human-based employment. Some of the issues AI raises open a "Pandora's box" of controversial arguments, similar to those raised by genetic engineering. For example, is it right for us to attempt to 'play God' and create intelligence? If we are able to create an artificially conscious 'being', independent of any 'divine intervention', what does this infer about the religious issue of Divine intervention in the creation of human consciousness? It is no surprise that the public is tending to avoid the issue by denying its validity point blank.
Computer hardware does have some significant advantages over biological nervous tissue: these advantages indirectly aid the development of AI. The following points are paraphrased from Roger Penrose in his essay "Setting the scene: the Claim and Issues" from the volume "The Simulation of Human Intelligence" (1993, Blackwell). Firstly, Electronic circuits are already about a million times faster than speed of a nerve cell transmitting an impulse. Secondly, electronic circuits have an immense advantage over brains in terms of precision in timing, and accuracy of action. One major pitfall is that no neural network yet constructed has anywhere near the multitude of synapses (ie connections between neurones) that occur in a biological brain, but this may be overcome...