| TIP: Click on subject to list as thread! | ANSI |
| echo: | |
|---|---|
| to: | |
| from: | |
| date: | |
| subject: | Re: What Is c Within Hami |
"John Edser" wrote in message
news:...
> The Mad Hatter's Tea Party continues...
>
> > > > > > Note that John Edser wrote:
> > > > > > Within Hamilton's rule the two fitnesses
> > > > > > being compared are inclusive fitness
> > > > > > (rb) and Darwinian fitness implied as
> > > > > > as just the cost (c).
>
> > > > > NAS:-
> > > > > This is wrong. Conventionally, inclusive fitness is r b -
> > > > > c, not r b.
>
> JE:-
> Then "Hamiltonian fitness" is not
> "inclusive fitness". Please provide
> the fitness label that you now argue
> denoted one rb fitness total
> within Hamilton's rule.
Something like 'inclusive fitness benefit', perhaps?
> Any relative fitness is a comparison.
> Any subtraction is just a comparison.
> What was being compared is what was being
> subtracted. What was being subtracted
> here, is c from rb.
No, c is subtracted from baseline fitness (call it K), and r b is
being added. The net effect is r b - c, so there has been a net
increase in inclusive fitness if r b > c; hence this is the condition
for when a social behaviour is favoured by selection.
> ERGO: rb and c were
> the ASSUMED fitness TOTALS being compared
> within the rule were rb (the HAMILTONIAN total)
> commonly referred to as "inclusive fitness"
> and c, the cost of b. This c cost is the
> total cost IN DARWINIAN FITNESS to the
> actor.
You are extremely confused, John. rb is not a fitness total, it is a
component of fitness, or more precisely, a component of marginal
fitness. c is another component. Their net reveals whether marginal
fitness is positive or negative, i.e. whether the trait is favoured or
disfavoured.
> NOTE: all these values are just
> variables. Not a single constant exists
> within the rule.
They are not variables, they are functions.
dw/dx = r[x] b[x] - c[x]
> > > > JM:-
> > > > This is also wrong. At least as Hamilton defined
inclusive fitness in
> > > > 1964. He defined it as something like (K + rb - c),
where K would be
> > > > the fitness that an organism would have if all social
> > > > interactions were
> > > > excluded (and the costs of those interactions).
>
> JE:-
> The above constitutes Hamilton's fumble.
> This failed attempt to include an explicit
> absolute fitness general term within his rule
> so that the rule could make biological sense
> proved fatal.
>
> When the absolute fitness of the actor
> is explicitly included within the rule
> then:
>
> rb > K
>
> where:
>
> K = Darwinian fitness of the actor.
This just doesn't make sense, John.
> This is not an ESS (evolutionary stable
> strategy) because the actor becomes
> sterile like.
What?
> However, only this ONE case proves
> organism fitness altruism within nature.
> All cases of Hamilton's rule without K
> remain ambiguous because the rule cannot distinguish
> between a reduced donation and an investment.
> This being the case the rule without K remains
> _biologically_ meaningless even if the _maths_
> is valid.
If K represents what I think it is meant to represent (i.e. a baseline
fitness) then I cannot make sense of what you are saying, John.
---
þ RIMEGate(tm)/RGXPost V1.14 at BBSWORLD * Info{at}bbsworld.com
---
* RIMEGate(tm)V10.2áÿ* RelayNet(tm) NNTP Gateway * MoonDog BBS
* RgateImp.MoonDog.BBS at 8/6/04 6:19:27 AM
* Origin: MoonDog BBS, Brooklyn,NY, 718 692-2498, 1:278/230 (1:278/230)SEEN-BY: 633/267 270 @PATH: 278/230 10/345 106/1 2000 633/267 |
|
| SOURCE: echomail via fidonet.ozzmosis.com | |
Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.