Jayjay4547 wrote:So long as you to stigmatize my post as obsessed, unreason fantasy, a heap of shite and silly, I hope that some readers will appreciate that your account of my position isn’t to be trusted.
Unlike you, I don't have a proven history of dishonesty, nor am I trying to push a story of evolution which is blatantly trying to minimise or even ignore more-than-plausible factors.
Jayjay4547 wrote: What I have been arguing is that the short blunt canines of Australopithecus shows that they had abandoned defensive biting, which makes other higher primates dangerous to attack.
Well, you have concentrated on
predator defence to the exclusion of any other defensive or offensive use.
And you had effectively ignored other factors which could also affect dental evolution.
You seem to be obsessively focussed on an oversimplified description while simultaneously berating actual biologists for failing to take into account the subtleties of interaction between organisms and the environment.
Jayjay4547 wrote:It would be immediately useful to hit a jackal on the head with a stone before it grabs your baby.
And a mother would seem to be best-placed to do that if she was already habitually using stones for things
other than predator defence, since those other uses seem to give both the chance of skill development in safety as well as immediate reward for use.
Jayjay4547 wrote:But defending against a predator would be different; every available resource in the prey animal’s being is then drawn into the effort to avoid being eaten. Brain, nerves, muscles and skeleton are all working at their ultimate effectiveness. And how well they do their task is consequential- not only for that animal, but for its relatives in the troop.
Yet in your example, all she needs to do is give a blow sufficient to discourage the jackal. She doesn't necessarily need to be a mighty warrior training every day for defence, simply an animal which has some skill at using rocks.
And, indeed, if one is thinking of evolutionary timescales, which presumably one should be, for animals which habitually use tools for defence as well as other things, especially once some skill at throwing rocks, etc is developed, rather than your apparent fantasy of a well-oiled warrior in peak condition defending his tribe, aggressive interactions with potential predators may be relatively mundane events.
Jayjay4547 wrote:You require a “safe” environment for developing weapon using skills? That would be Lamarkian. Darwin’s contribution was that what drove natural changes was unsafeness: the unsurvival of the unfit.
Don't be so colossally and moronically hypocritical.
With your fantasising about your warrior-apes habitually training,
even you accept that starting to learn how to use tools by first using them to defend against predators is unlikely to improve survival, and that other, safer means of skill development are necessary.
The difference between us is that I'm not obsessed with the idea of predator defence as being the only form of tool use worth considering.
Jayjay4547 wrote:tolman wrote: In
your world, before they could be any real use, tool-users had to have somewhat sophisticated forward planning skills to prompt them to train with and carry weapons in the expectation of some future benefit, while somehow not having the wit to realise (even over very long timescales) the other profitable uses to which those skills could be put.
Seems more like your world, to require “sophisticated forward planning skills” for an animal to knowingly carry weapons around.
In a world
not obsessed with predator defence to the exclusion of anything else there are obvious mechanisms of skill development which have immediate positive feedback and which don't need an explicit or implicit consideration of possible future uses to motivate their pursuit.
Yet given that you felt the need to claim the organisms concerned
must have regularly trained, obviously you do want to imagine that their only real
use of weapons or weapon-like tools was predator defence, meaning they had to somehow be motivated to train regularly in at least implicit expectation of some distant future benefit.
Jayjay4547 wrote:A hominin for whom hand weapons had demonstrated their effectiveness, would need no forward planning to carry them around wherever it needed to go.
For effectiveness to be able to be demonstrated, not only would some skill have to already exist, but the animal would have to have
already been carrying the weapon
before using it.
And in your predator-obsessed story, there would still be a need to recognise the value of carrying a weapon now based on the potential use on some future occasion.
"
Wow, I'm glad I had already trained with this weapon and was carrying it with me - I must make sure to carry on training with it because I know that makes me better, and carrying it in case a use crops up again." does seem
relatively sophisticated reasoning.
Jayjay4547 wrote:So I don’t fantasize that predator defense was the sole of overwhelming reason for significant tool-use development.
If you weren't trying to pretend that predator defence had been
the driving factor behind the development of weapon-using skills, you clearly wouldn't have needed to fantasize about ancestors regularly training with weapons in order to be competent in future interactions with predators.
Had you taken a more holistic approach, admitting that non-weapon-use can develop useful transferable skills, and admitting that weapon use for things
other than predator defence could be
ideal training for defending against predators, you might have looked more sane and less desperate.
Possibly you have been self-hamstrung by considering any consideration of offensive or defensive weapon use against other members of one's species as 'self creation', moronically considering that from an organism's point of view, members of its own species
don't form part of its environment
Jayjay4547 wrote:I infer from the small blunt canines of Australopithecus that defensive weapon USE was the reason for their small blunt canines.
Yet you seem keen to ignore the effect that sexual dimorphism might have, seemingly because admitting that it plays a meaningful part in males of some species having large canines necessarily implies that social behaviour can be a meaningful factor in canine size.
Indeed, the development of meaningful skills at hurting predators means having skills which would be highly likely to also be employed whenever fighting relatives happened - it would take a seriously sophisticated culture to use rocks and sticks to attack trespassing predators yet prohibit their use in either intra or inter-tribal conflict.
Jayjay4547 wrote:tolman wrote:Had ancestors used rocks in places
remote from streambeds, how likely would such things be to be fossilised and then discovered later?
One place you can be reasonably sure that a given stone ISN'T many millions of years old is if it lies in a stream bed, where stones are ground up. The Lake Turkana tools weren’t found IN a stream bed but NEAR one, from which they were sourced. What enabled them to be precisely dated was that they were excavated from a particular level in layered bed, in the style of classic geology dating.
So, not 'remote from'.
You really should try and read what people write.
It could make you look less foolish.
Jayjay4547 wrote:I’m not invested into “pseudoGodgaia/environment”t except as valid agent of creation as opposed to the trope of self-creation that you insist on, for example in your post below.
tolman wrote: A rational biological explanation for such a period of apparent stasis where the opportunities and raw materials seem likely to have stayed fairly constant is that some genetic changes had to arise, spread and come together in order for the organism to get any 'further'. That essentially seems to be natural selection working on chance variation, with 'advances' depending on the organism gaining capacity to allow advance to happen. (*bearing in mind the patchiness of discoveries)
So to your thinking some genetic change happened that could equally have happened a million years later or earlier or might by chance never have happened, and so the origin of humankind was a chance outcome.
For a given mutation to arise in the first place clearly
is a matter of chance.
For it to provide a selective advantage clearly depends on the current situation, both in terms of the organism's environment and the organism's [current] genome. That is obviously still combined with an element of luck, since even the most genetically 'gifted' baby can still be bitten by a snake or die in a famine.
For the mutation to spread if it is currently fairly neutral (even if in hindsight it will be seen as a necessary factor in some future beneficial gene combination) is also significantly a matter of luck, both in terms of external factors and also factors like the mutation's proximity to some immediately useful gene.
Jayjay4547 wrote:That is a self-creation trope.
No it isn't, it's biology.
It's not remotely 'self creation' to point out that natural selection can only happen when there are differences for selection to work on, and that new differences arise within individuals as a result of essentially random processes.
You could try and pretend that some external magical being is causing specific changes to happen, but to do that in any way is to give up on science and turn to nonscience, woo and religion.
I don't for a minute suggest that genetic changes are 'imposed' by an organism or that they are the result of any kind of act of will, simply that changes arise in organisms and
then undergo selection which is necessarily hugely dependent on the environment.
Jayjay4547 wrote:I’m not discarding the role of genetic change, I just think that being able to name the site of some genetic change like FOXP2 doesn’t help that much with explanation of origins
In the simplest explanation, genetic changes initially just happen in an organism.
Once they have initially just happened, then interesting and complicated processes come into their own, but the nature of those processes involves working with raw material that has to be there before they start work.
Your desired kind of 'explanation of origins' seems to involve at the very least a portrayal of 'the environment' as being some anthropomorphised 'generous' and 'creative' pseudo-god entity where outcomes and timings of outcomes are predestined and inevitable.
That's not biology and not scientific, it's at best half-arsed pseudo-religious woo.
Complaining that science doesn't adequately accommodate your desires in that respect is essentially the same as someone claiming that science is following an atheist agenda by failing to include Thunder Gods in meteorology.
I don't do sarcasm smileys, but someone as bright as you has probably figured that out already.