The concept of artificial life is very broad and confusing..what one may say as being alive may not apply to another.
In fact, we need to check first what level of intelligence do we require to say that it's already ALIVE?
How do they keep themselves alive. How do they "feed" themselves? How do they die?
Example: The simple algae: These are "alive" diba? Intelligence? I think practically zero. They photosythesize and multiply in the presence of sun. Life span: Very short. Do they heal/regenerate? Yes.
Now check out our very own solar calculator. Alive? No. Intelligent? Yes and No. (Naa advance calculator na mo-solve na deretso sa mga logical functions problems)..but their "intelligence is pretty much ahead sa algae. How do they keep themselves alive? Through direct conversion of light to electricity. Do they "die"? Yes, especially if the energy they produced is no longer capable of powering them up.
So when you sum it up, the only difference between the algae and the calculator is the inability of the latter to reproduce and regenerate/heal themselves..
Ako lang ni na opinyon ha?..