Re: AND THEN, JUST TRANSPLANT THE BRAIN... was Re: Headless frogs

=- deluxe -= (
Mon, 20 Oct 1997 21:32:53 -0700 (PDT)

I'd have to say that your assumptions about this technology are as
insightful as the automotive industry's opinion about combustion based
propulsion. What we know about genetics could fill a thimble.

Someday, these conversations will be compared to debates about the how flat
the earth is. (-;

Jeff Taylor

ps- please don't misunderstand the tone of this message.. I intend it to be
a playful jab at generalizations and narrow definitions. {-:

>At 01:49 PM 10/20/97 -0700, someone called jeff wrote:
>>How long is the growth cycle? six months? 2 years? 5 years? for a full
>>adult body?
>This strikes me as a misconception (so to speak), although an extremely
>pervasive one. On the face of it, the growth cycle for a perfect 16 year
>old young adult human body is 16 years. And it's hard to see how that can
>be achieved without all the sensorimotor interactions a conscious person
>has with the rich physical world, and with other people. The comic book
>picture of healthy and muscular bodies growing suspended in fluid, ready
>for cropping and transplantation, is entirely unhooked from everything we
>know about mammalian developmental processes.
>On the other hand, the real kicker in the headless frog embryo story is the
>informed suggestion that we are nearing the point where functioning organs
>can be cultured without requiring a whole body-brain complex to support
>them. I don't see why this should be done drastically faster in vitro than
>a body does it in vivo, but maybe there are ways to tweak the cycle if a
>complete body isn't needed. Other mammals grow big and strong far faster
>than we do, so maybe the latency plateau can be bypassed in decorticate
>Damien Broderick