Originally posted by Liberator
I define sentience as the indefinable element that puts Humans above other forms of life(even the Great Apes). Some animals are intelligent, some incredibly so. Some are capable of amazing displays of emotion. Some are even capable of recognizing themselves in a photo or mirror. But with all that, there is some element of Humanity that eludes scientific quantification and/or qualification. That is sentience.
If you can't define sentience, then you can't define what is not sentient. Likewise for intelligence; this is the inherent problem faced by both philosphy and artificial intelligence (amongst others).
Regardless of whether sentience itself can be defined as the work of a supreme diety or dieties, or whether it is an effect of some biological / physiological / environmental process, so long as we cannot define it, we cannot claim to be ablse to say whether or not we can create it.
Also, it's very easy to 'miss' intelligence by characterising it in terms of human behaviour and perceptions; how can we really judge the intelligence and sentience of sea-life, for example, when we cannot even experience that environment as they do?
Anyways, everyone knows humans are only the 3rd most intelligent species on Earth.