On 11/14/2013 1:57 AM, Dr Nick wrote:
> Tak To <ta...@alum.mit.eduxx> writes:
>
>> On 11/13/2013 3:44 PM, John Briggs wrote:
>>> On 13/11/2013 20:25, Tak To wrote:
>>>> On 11/13/2013 2:59 PM, Athel Cornish-Bowden wrote:
>>>>> On 2013-11-13 13:23:23 +0000, Bob Martin said:
>>>>>
>>>>>> in 2022398 20131113 130527 Gus <
gus.o...@gmail.com> wrote:
>>>>>>> How far does "relative" (as a noun) extend?
>>>>>>>
>>>>>>> I have a form, and it says not to be filled out by "someone related to
>>>>>>> you." (There is no contact i
>>>>>>> nfo to ask a question; just a website that does not clarify much.)
>>>>>>>
>>>>>>> By "relative" would you assume: immediate or blood relative?
>>>>>>
>>>>>> Any member of the human race?
>>>>>
>>>>> Why restrict it to humans? All living creatures are our relatives.
>>>>
>>>> That is not true unless there was only one cell
>>>> at the very beginning.
>>>
>>> You share 70% of your DNA with a banana.
>>
>> Any two books of the same language would share
>> a significant portion of the words and 100% of
>> the letters.
>
> Only if they were written by descendants of the original users of the
> same language.
What do you mean? An Australian aborigine writing
in English would not use words like "the", "is", "at"
or "in", and none of the letters A-Z?
My point is that information at the word or letter
level gives no hint to the relationship of the
authors.
And we don't even know what most of the DNA means.
> That all life uses pretty well the same genetic code and
> clearly related machinery strongly suggests they all share a common
> ancestor. What other model would you suggest?
But what is your model? In particular, what does "a
common ancestor" mean? A single cell? A single strain
of RNA? How does this gave rise to other strains of RNA?
If multiple strains or cell arose simultaneously, then
what prevented them from "spawning" completely separated
lines (trees)?
I agree that separated lines typically results in
disparate forms. However, it is not an absolute
certainty. It depends how what other viable forms
there are.
(Before continuing the debate, let me clarify that
I took the "all living creatures [are our relatives]"
to mean "all living creature _that_has_ever_existed_".
Otherwise, the author would be agreeing with me
that there could be multiple "ancestors".)
I don't have a model. I choose to remain agnostic
about whether there was only one "ancestor".