Archives for posts with tag: evolution

Nature.com  tells us that “Mice infected with toxoplasmosis lose their instinctive fear for the smell of cats — and the parasite’s effects may be permanent.”

Now what on Earth… You pretend to be running a blog about how people think and now you come up with wild stories about rats?!?

Well… the problem is that Toxoplasma Gondi, the parasite that is ‘behind’ all this has somehow found a way not only to influence the behavior of the rats it has infected but also to make sure that the alteration remains in place even after the infection was cured.

So what do we care if a bloody parasite manages to twist the simple minds of rodents? Permanently even?

“In humans, studies have linked Toxoplasma infection with behavioural changes and schizophrenia. One work found an increased risk of traffic accidents in people infected with the parasite2; another found changes in responses to cat odour3. People with schizophrenia are more likely than the general population to have been infected with Toxoplasma, and medications used to treat schizophrenia may work in part by inhibiting the pathogen’s replication.”

OK, OK, ‘correlation is not causation’, I know that, but don’t you find it ‘fascinating’ that behavioral patterns could be permanently altered from the outside the brain by something having a ‘material’ nature? Learning, acquiring new information, also involves something from outside the brain but ‘information’ doesn’t have a ‘material’ nature, right?

And something else. Don’t you find it rather interesting that so many people post pictures of cats on their FB walls?

http://www.nature.com/news/parasite-makes-mice-lose-fear-of-cats-permanently-1.13777

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I’ve been using cinnamon sticks for rice pilaf or curries/stews for some 5  or 6 years now.

My son, 15 years old, who had been raised on a mixture of Northern Transylvanian (my wife is a native of Dej) and Romanian/Armenian food (I’m a half breed myself), (his parents take turns at the cooking stove), is used with ever changing recipes. That doesn’t means he accepts everything…in fact he is rather choosy, always having an alternative develops a certain habit of asking for the better of whatever is available at one moment!

Anyway, today – for the first time, he asked for the cinnamon stick and not only picked every grain of rice from it and sucked on it as if it was a lolly-pop but he also made a picture of it and posted it on his FB wall.

So learning new habits is not that hard, it only takes an open heart on the side of the student and a lot of patience from the teacher…not to mention the fact that the teacher’s main goal has to be the student’s best interest, otherwise the whole exercise is doomed to eventual failure!

PS

I must thank Jhumpa Lahiri (“The Namesake”) for introducing me to the joys of using cinnamon sticks.

Reason, consciousness or morality?
What is it that makes us really different from the other primates?

            I tried to suggest earlier that reason is certainly useful but somewhat over-hyped while “Dubio” might have been what Descartes had in mind when he coined “Dubito ergo cogito, cogito ergo sum”. So what is ‘reason’? Nothing but the ability to compare two or more alternatives. The point is that you have to have those alternatives in the first place AND at least a criterion, a yardstick, to use when trying to choose between those alternatives. And for those of you who love etymology “reason” and “rationality” come from Latin were “ratio” basically means ‘taking into consideration’.

Let’s see now what ‘consciousness’ is about. Experts seem to have a hard time trying to decide one way or another. You have here a 14 pages long dissertation about ‘how to’ and ‘how to not’ define it. I’ll look someplace else for help. There is an evolutionary biologist turned philosopher who says that we are not only conscious (every living thing is) but “self-conscious”! His name is Humberto Maturana Romesin. In a nut shell his arguments are that anything that has a membrane separating an inside from the outside and is able (to a certain degree, of course) to choose what passes through that membrane and what not is ‘conscious’, in the sense that it is somehow able to determine what is good and what it is bad for itself and act accordingly. Humans, says Maturana, are not only conscious but self-conscious: they not only do the choosing but also ‘watch’ themselves doing it. ‘Self awareness’ in plain English.

OK. So we have self awareness to supervise the ability to choose. Why keep on looking for anything else?

Well… you remember the ‘criterion, the yardstick to use when trying to choose between the available alternatives’, don’t you? Where do you get this criterion from? OK, self-awareness might help here in the sense that ‘preservation of self’ might provide a quite valid one. ‘Does it serve my interests? Is it helpful for my survival? Then it must be good!’

In fact this is exactly what Nietzsche said when he justified his Uebermensch’s actions: “What is good? All that heightens the feeling of power, the will to power, power itself. What is bad? All that is born of weakness. What is happiness? The feeling that power is growing, that resistance is overcome.” And where did this attitude drive Nietzsche himself, and some of his followers – Hitler among others? To disaster?
Are you troubled by this line of reasoning? Do you feel that the relentless pursuit of your own interest is legit? Do you believe in Darwin’s ‘survival of the fittest’? You’re not alone!

Unfortunately you’re not right, either. According to Ernst Mayr, What Evolution Is, Darwin never said/wrote such thing: it would have been contrary to the very idea of evolutionism. “Fit”, in this context, means “adapted” – not strong, trained, etc. and being perfectly adapted to your medium actually means you are not able to survive to the slightest modification. For those of you who have some trouble accepting this consider the notion of ‘just in time’ management: carrying additional stocks, anything more than what is necessary right now but enables you to adapt to a malfunctioning in the supply system, is considered unacceptable costs. Same thing with ‘being fit’, the fitter you are – the more adapted to a certain medium and only to that medium – means you make a more efficient use of the resources at your disposal BUT that your ability to cope with an eventual change in the medium you are living with is proportionally lower. Consider the giraffe: it has a competitive advantage over other herbivores because of it size and ability to forage on trees but if the trees become higher or disappear altogether it will be the first to die of hunger.

Rephrasing Mayr, evolution is not about the survival of the fittest but about the demise of the unable to adapt. And what has this to do with our problem? With the relentless pursuit of one’s own interests, NO MATER WHAT? The real problem is right there, at the end of the previous sentence. Following one’s interests is a very legitimate business, as long as the actions of that individual do not endanger the community of which that individual is a member.

One of the most important contributions Mayr made to evolutionism is the notion of ‘Biological Species Concept’. Bluntly put, this is about the species being the object of evolution and not the individuals. When it comes to individual HUMAN beings this is rather hard to accept given their huge adaptability but we should keep in mind that Mayr was speaking about biology while individuals evolve ‘culturally’ and ‘socially’: they adapt, themselves, their communities and even sometimes the medium they live in, by cooperatively using information gathered in time, by themselves and by their ancestors. It is rather easy to understand and accept the fact that a newborn has absolutely no chance of survival without some grownups taking care of him but the fact of the matter is that nobody, absolutely nobody – no matter how strong, wise or both – can survive, let apart evolve, alone. Just think about what Robinson Crusoe had to endure and he was stranded along with some technological artifacts AND with a considerable selection of the information accumulated by the humankind until the time of his misfortune.

This whole thing is getting rather long so I’ll try to wrap it up. My hunch is that it is morality – our ability to get along with each other – that really makes the difference between us and the rest of the primates. Without morality we would never had been able to cooperate, we would be forever embroiled in a constant struggle akin to what is going on in a chimpanzee or baboon troupe. Even more, morality not only creates conditions for cooperation but also sets the rules for competition – without which social adaptability and hence evolution and survival would be impossible.

Please comeback for updates on this, I’m not completely satisfied with it but I have to leave it for now – I have to take care of my material side, dinner has to be cooked.

It should be a must and not at all an oxymoron.
Morals were a time sanctioned method of getting along with the others which was based on religious precepts.
In time people understood the benefits of cooperation versus thuggery and thus the need for the religious backup disappeared. Ethics were born.
Nowadays some try to convince us that life is a zero sum game (it isn’t) and that ‘ethics are for the faint hearted’.
Not true. This conviction arises from falsely understanding the Darwin’s natural selection as the ‘survival of the fittest’!
Ernst Myer demonstrates clearly that this is absolutely wrong: ‘what is “the fittest” ?’ ‘You can be ‘fittest’ only by taking into account one or more parameters but those parameters might never describe completely a situation. Moreover ‘situations’ have a knack for changing so becoming the ‘fittest’ is a useless performance. In NNT’s terms is a (futile) attempt at robustness. Mayr says that in reality natural selection is about the demise of the unable to adapt. (Ernst Mayr, What Evolution Is).
Now is anybody naive enough to believe that one can adapt to new circumstances solely by oneself, without any outside help? And what help can one expect while finding oneself alone in a corner after a long enough spell of behaving unethically?

 

PS Thanks Vince Pomal for the very interesting question!