talloulou said:
I don't entirely agree with that as I think many would mourn the loss a baby or 1 year old and it has nothing to do with intelligence.
Many would mourn the loss if they believed it to be a "person" as you do, or because society tells them to mourn the loss.
Most probably would not mourn the loss of a fetus in a miscarriage, or the loss of a zygote in an early, involuntary abortion. At least not to the same degree that they'd mourn the loss of a child.
What most people would mourn the loss of, is not really that relevant. Murder isn't illegal for its own sake, although the cultural taboo surrounding murder is so strong that we often forget this fact. It's illegal because you're ending the intelligence of another entity.
talloulou said:
I don't agree with this either. Intelligence has nothing to do with why we eat pigs vs other humans. First off pigs are highly intelligent. Perhaps more so than dogs and in our culture we don't eat dogs. We eat what we are use to eating.
That's true to the extent that we don't eat ALL other animals. But intelligence is the main reason we don't eat humans. While many Americans would be disgusted by eating a dog, they probably don't regard the Koreans or Vietnamese as murderers for doing so.
And while pigs are certainly smarter than dogs, neither pigs nor dogs come anywhere close to the intelligence of a human.
talloulou said:
That aside my problem with "intelligence" as a deciding factor for dictating when human life should be valued is that it is arbitrarty and the limits on when a human is "intelligent enough" to be valued may slide all over the wide scale of varying levels of human intelligence. We could decide that the world is overpopulated and thus it is in our best interested to rid the world of those with an IQ less than 130.
How does that have anything to do with the merits of setting a reasonable intelligence cutoff? Under your system of defining personhood by human DNA, we could decide the world is overpopulated and thus it is in our best interest to kill anyone with artificial limbs or prosthetic organs.
Which brings me to my next question. Suppose 50 years from now, it's possible to replace any organ, tissue, or cell with an artificial organ, tissue, or cell that works as well or better. Suppose that even the brain's pattern could be copied and gradually converted from carbon to silicon. Suppose that an individual existed who had completely gone from "natural" to "artificial", but still looked and acted exactly the same as any other human being. Would you have any problem with his execution?
See, we can slippery slope on your DNA-based definition of personhood too.
talloulou said:
The other problem is that "intelligence" is often hard to measure and there are different types of intelligence.
There aren't that many different quantifiable standards. An IQ test would certainly be inadequate; I'm talking about a standard that actually measures brain processing speed.
talloulou said:
And like you said lowering the bar for intellgence will allow for non human animals to be included.
There's an easy solution to that: Don't lower the bar.
talloulou said:
Also "intelligence" not being easily defined could mean many things. If a computer beats me at a game then isn't the computer more intelligent?
If that computer can do everything else that you can do AND beat you in a game, then yes.
talloulou said:
What about idiot savants?
Generally they are less intelligent than normal humans, but not so much that they still aren't beyond animals.
talloulou said:
Also do you really believe that no non-human animals are more intelligent than 2 year old humans?
I find it unlikely that any non-human animals on Earth are more intelligent than a 2-year-old. But they could certainly exist elsewhere.
talloulou said:
What about the studies that show various species of whales may actually be more intelligent than humans?
The evidence for that is muddled at best, and I would suspect the opposite conclusion is true.
talloulou said:
How do you justify excluding them from personhood if being a person is more about intelligence and less about being human?
If it can be conclusively shown that whales truly are more intelligent than humans, I would certainly support including them in personhood.
talloulou said:
Also with intelligence how could potential not be a factor? Often children have IQ's within a similar range to that of their parents. I have even seen studies that suggest most humans marry humans with similar IQ's. So if an unborn is going to develop a high level of intelligence at a later developmental stage how can you possibly put it in the same catagory as less intelligent animals that will never have the same achievement potential? I know "potential" is often ignored but I don't see why that is justified.
Potential is an even MORE slippery slope.
Suppose a substance were invented that caused neurons to zip around the brain at a greater speed. Suddenly, a dog would have great "potential" for intelligence...even if he hadn't been given the substance.
Masturbation would be mass murder, in that millions of potential humans were dying. For that matter, so would sex.
A goldfish has the potential for being the great-great-great-...-grandparent of the most intelligent being on Earth in 500 million years.