Saturday, March 15, 2014

More Profound Things: The Living

There are many things and concepts within the collective worldviews of humanity that are considered pretty mundane. However, there’s certainly a collection of things and ideas which rise to the top in profoundness when compared and contrasted with the ordinary everyday routine. These are the sorts of profound things and concepts which keep you awake at night, pondering the Big Issues. No two people will come up with identical lists. Without further ado, here are some more of mine. 

* Human Matter Matters: We are starstuff (and Big Bang stuff too). It’s pretty profound to realise that all the elements (except hydrogen) that makes you, you, once-upon-a-time resided in the interior of a massive star(s). Does that make you ‘hot’ stuff? Of course all that makes you, you - all of the fundamental bits and pieces like electrons and quarks – can be traced back to the Big Bang. That’s even more profound, though being ‘Big Bang stuff’ is probably not as poetic as being composed of ‘starstuff’.

* Spooky Observations at a Distance: When you look up at the night sky, a) is someone or something is looking back at you, or b) is no one or nothing is looking back at you? Either scenario is profound when you think of the implications.

* We Gotta Walk-That-Walk: That we have a totally upright bipedal gait, without benefit of a balancing tail, is something totally unique and therefore somewhat anomalous in the animal kingdom, despite all the obvious disadvantages. What disadvantages? For one, obviously, it’s a lot easier to fall down when you’re standing on two legs relative to four, six, eight or more. Falling over can result in serious consequences, especially if there isn’t anyone else around to come to your aid. Secondly, going bipedal called for a radical shift in our skeletal structure as well as in related musculature and organ attachment.  A bipedal gait must therefore be not only revolutionary but really of evolutionary importance. But that profound observation leads to another anomaly. If a bipedal gait without the encumbrance of a balancing tail is such a significant improvement, why haven’t more animals undergone that shift?   

* We Face Facts: Human facial features. Say you are shown a photograph of the face of a short, bald, chubby, 30-ish white male. Say you are shown a photograph of the face of a chimpanzee; the face of a lion; an Indian elephant; a grizzly bear, a koala bear, a brown rat; a German Shepard, a wallaby, a bottlenose dolphin, a pelican, an ostrich, a cobra snake; a Nile crocodile, a green tree frog; a tuna fish, a lobster, a German cockroach; a black ant; a house fly, a huntsman spider, even a flea. Now, here you stand in a police line-up looking at five short, bald, chubby 30-ish white males, five chimpanzees, five lions, etc. etc. Match the original facial photograph with one of the five suspects! While a match is likely in the case of the human males, it’s going to be on average pure guesswork with any other species or breed of species unless the individual in question had some very unique and atypical facial feature. Now, the profound question is, why do humans have unique facial features while the rest of the animal kingdom doesn’t. How do you tend to recognise a human? First and foremost by his or her face. This is all very odd because it is so very unique, yet very profound. 

Equally as profound, not only do we have unique facial features, but racial facial features. Take four ‘passport’ photos of a Caucasian, a Negro, an Asian, and an Australian Aboriginal 30-ish something male and photoshop them so that all are exactly the same shade of grey. It would still be easy to match the face to the race. What’s profound here is that those racial facial features evolved, for reason(s) unknown, within the time a small group of Homo sapiens migrated out of Africa just roughly 50,000 years ago.
  
* Memory, Creativity and Chemistry: Like a book or an LP, like a film strip or a DVD, like a painting/photograph or a CD, like computer software or a tape recording, the human mind houses a record of events which we call memory. Unlike these other physical media every time your mind does a replay, it can value-add to that memory. You may have a memory for how make pizza, but unlike the recipe in the cookbook, you can be creative and change the recipe. All of that memory/creativity is based in chemistry, specifically neurochemistry, which, unlike all other kinds of chemistry, makes that possible. How, I don’t begin to comprehend, but it is so, and it is rather profound upon reflection.

* Our Family Tree is Kaput: All our human ancestors are extinct. Something is screwy somewhere! I mean there have been dozens of separate and apart hominoid/hominid species that separate modern Homo sapiens from our closest still living ancestors, the chimpanzees. All those in-betweens have gone extinct, for reason(s) unknown. That all would have succumbed to, whatever, seems to defy probability. Clearly many of those hominoid/hominid species shared many of our survival traits like possessing a relatively high degree of intelligence, tool making, group cooperation when hunting-gathering, etc. There’s no rational explanation offered up by paleoanthropologists that explains this. There’s not even that ‘easy’ answer of Homo (‘shoot-first-and-ask-questions-later’) sapiens being the fall ‘guy’ here. ‘Modern’ humans hadn’t of been thought up yet in anyone’s evolutionary philosophy when most of these extinctions took place.

* Not a Ghost of a Chance: It’s also pretty profound when you have every human culture and society from across all time frames believe in the reality of a phenomena that modern science rejects as pseudoscience or supernatural and paranormal nonsense, and it isn’t just life-after-death or an afterlife but an actual apparent manifestation of same. Some call them ghosts, wraiths, spirits, and phantoms – whatever. Actually I view (not that I actually have) ghosts, etc. as further evidence that we ‘exist’ in a Simulated (Virtual Reality) Universe, but that’s another story for another time.


Tuesday, February 18, 2014

The Russell Stannard Questions: Life

The following questions (Q) are taken verbatim from those poised by Russell Stannard in his 2010 book The End of Discovery [are we approaching the boundaries of the knowable?]; Oxford University Press, Oxford. I consider these typical of the sorts of modern Big Questions that are part and parcel of the philosophy of modern science, especially physical science.

My answers are based mainly with the thought of our being in a Simulated (Virtual Reality) Universe that has been constructed by one or more Supreme Programmers. However, some of the answers apply regardless of what the nature of our ultimate reality is.

Q. Why is the universe life-friendly?
A. The universe is both bio-friendly and not bio-friendly. 99.999% (add a few more 9’s here) of the cosmic environment is decidedly bio-unfriendly and would snuff you out so quick-smart you wouldn’t know what hit you. Of course the cosmos is also bio-friendly otherwise you wouldn’t be here reading this. If you reject a supernatural explanation, that leaves coincidence, a multiverse, or software. Coincidence is stretching things since there are just so many dials that have to be set to a very narrow range. The multiverse appeals to probability statistics – think of those millions of monkeys at millions of typewriters one of whom will type “Hamlet” word-for-word – eventually. That leaves software, or in other words a Supreme Programmer programing our universe in a bio-friendly way. 

Q. Is there extraterrestrial life, and if so, how do we humans stand in comparison as regards intellectual capacity?
A. Given the vastness of the cosmos, and the sheer number of galaxies in the observable cosmos, and the numbers of stars per galaxy with associated solar systems and the number of planets per solar system not to mention possible rogue/orphan planets and how interstellar cosmic organic chemistry associated with life is, well, cosmic, etc., you would have to be pretty brave to bet the family farm arguing Planet Earth being the proverbial cosmic IT when it comes to life. Even going up the chain from the origin of life ‘living’ molecules to unicellular life to multicellular life to intelligent life to technologically advanced life forms and advocating extreme difficulty in getting from one step to the next step on up the line, there must be – if you’re a betting person – millions of advanced extraterrestrial civilizations throughout the cosmos and a goodly number in our galaxy too. Further, we humans are the new boys on the block, so the odds are that any other extraterrestrial intelligences will have been around way longer that we have, and thus have evolved greater intellectual capacity that we have yet achieved. However, the interesting bit is that once intelligence is achieved, natural selection gives way to artificial selection, and part of that artificial selection might ultimately be the transition from biological intelligence to artificial intelligence, artificial intelligence which will further evolve via artificial selection as machine intelligence designs ever better machine intelligences.


Saturday, February 15, 2014

The Russell Stannard Questions: Mind Over Matter

There are many Big Questions in science, many of which go back to the ancients, even back into prehistory in all probability. One of the best modern set I’ve found recently were sidebars in a book by Emeritus Professor of Physics at the Open University, Russell Stannard. These are my answers, thoughts and commentary to those Big Questions. Many readers might have ‘fun’ trying to come to terms with these in their own way based on their own worldview.

The following questions (Q) are taken verbatim from those poised by Russell Stannard in his 2010 book The End of Discovery [are we approaching the boundaries of the knowable?]; Oxford University Press, Oxford. I consider these typical of the sorts of modern Big Questions that are part and parcel of the philosophy of modern science, especially physical science.

My answers are based mainly with the thought of our being in a Simulated (Virtual Reality) Universe that has been constructed by one or more Supreme Programmers. However, some of the answers apply regardless of what the nature of our ultimate reality is.

Q. The problem of consciousness.

A. How can your basic building blocks that are electrons, neutrons and protons combine to form atoms; atoms that combine to form molecules; molecules that combine to form complex molecules - complex molecules like organic molecules, biochemical molecules and molecules part and parcel of neurochemistry; the ultimate result being that this chain from the simple to the complex crosses a threshold from the inanimate to the animate and from the animate to the animate entity that is self-aware. It is a profound mystery why one has a fairly unique structure comprised of the same fundamental bits and pieces that comprise all other structures but yet one that can contemplate itself. That structure is the brain and the mind that resides within that structure. The brain is the only structure in the cosmos that can examine itself and yet that structure is ultimately comprised of just electrons, neutrons and protons. However, is there really a problem if that structure can ultimate figure out how to create another structure that also has consciousness. In other words, intelligent and conscious biological software can deliberately give rise to an artificial intelligent and conscious string of software and in doing so thus create a Simulated [Virtual Reality] Universe that houses or contains an apparent (but artificially) intelligent and conscious biological entity or entities that wonders whether or not there was an artificially intelligent software program that gave rise to it. That sort of reminds me of the human who dreamed she was a butterfly who dreamed it was a human, or was that the butterfly who dreamed it was a human who dreamed she was a butterfly.
  
Q. The free will/determinism problem.

A. I tend to have a belief in absolute causality, much like both Newton and Einstein who believed in a regular clockwork universe. If X happens, Y follows. All the laws, principles and relationships of the natural universe were forged at the time of the Big Bang event and once that clock was set in motion, all else flowed from those first established laws, principles and relationships. So, in other words, determinism rules, okay? That equally holds true if we’re in a Simulated (Virtual Reality) Universe, regardless if we are, like a character in a video game a ‘puppet-on-a-string’ or the avatar as a stand-in in a simulated world for someone in the really real world, or as the consequence of someone programing a set of laws, principles and relationships then hitting ‘run program’ and standing back to see what eventuates. We’d all like to think we have free will, but if we are programmed to believe that, what harm has been done if you really do believe that what you had for dinner was something you freely did choose to have.

Q. Does complete understanding require more than solely physical explanations?

A. By complete understanding, one has to incorporate those seemingly nebulous things that reside within the mind, things that seem far removed from the physical world of forces and fields and particles and actions and reactions, etc. These so-called nebulous things revolve around consciousness and the subconscious, thinking (that’s clearly a neurochemical process), memory (clearly chemically encoded), creativity, emotions (definitely chemically driven), morals and ethics, right and wrong, a soul, spirituality, free will, etc. However, all these sorts of concepts reside in the brain or in a part of the brain normally identified as the mind. Whether mind-in-the-brain, or just in or a part of the brain, the brain is ultimately composed of fundamental particles that make up atoms that make up molecules that ultimately make up your neurochemistry and thus your brain and structures within. The proof of the pudding that these so-called nebulous concepts reside in the realm of the physical is that these concepts or things can be altered by physical things – physical happenings like injury (you can be knocked unconscious) or lose consciousness in sleep; chemical things like drugs, lack of sleep, the aging process and related can have decided effects on aspects of your personality, etc.; biological happenings like disease also can have profound effects on some of those so-called nebulous things. They can also be altered by your own self, being creative and via thinking deep thoughts which is an electrochemical process (you might think ‘morals be damned, crime does pay’) and of course closely related, the lifelong learning process (as in learning and altering your learning about say morals/ethics; right/wrong) – as you learn, you may find that what you thought was crystal clear, black and white, is really murky and grey. The learning process (formal or otherwise) can have profound effects on your belief systems and worldviews. Learning clearly has foundations in neurochemistry.   


Friday, January 24, 2014

Astrobiology: The Jovian Planets

If you are a professional scientist interested in astrobiology (exobiology), searching for life in the Universe, your mantra is “follow the water”. If you want to find life, find liquid water first. But liquid water isn’t the total be-all-and-end-all when it comes to finding LGM – Little Green Microbes. Water, based on Planet Earth’s own terrestrial life as the only statistical sample we have, is certainly critical, but so to are lots of other things as we shall soon see.

The Jovian planets, Jupiter and Saturn, including those gas giants further out (Uranus and Neptune) continue to be overlooked as habitable abodes for ET or LGM. The logic of this escapes me as we shall soon see, for the idea that the Jovian planets could in theory harbour life forms as complex as jellyfish or other quasi-aquatic life forms even up to and including the equivalents of Jovian dolphins and whales can’t be ruled out. While Jovian extraterrestrial intelligence (ETI) might be possible, Jovian ETI with technology can pretty much be ruled out, and for much the same reason as to why dolphins and whales here on Earth aren’t a technological species - they can’t build things in the environment to which they have adapted to.

So what’s needed to build us an ET? Well, minimum requirements are 1) appropriate life-as-we-know-it chemicals (CHON – Carbon, Hydrogen, Oxygen and Nitrogen – and of course water or water vapour); 2) a proper comfortable environment for life-as-we-know-it (an appropriate temperature range for liquid water or water vapour); 3) mixing that brings the various inorganic and organic chemicals required into proximity; and 4) an energy source(s) to drive things along, like solar energy does for many terrestrial organisms on Earth.

It’s time to introduce the main players, Jupiter, Saturn, Uranus and Neptune, and those four essentials: CHON, environment, mixing and energy. If there is life-as-we-know-it on these four planets, then we need CHON, we need a proper environment, we need mixing to bring essentials together at one time and place, and we need a source(s) of energy.

One clarification is in order first. Although the Jovian planets are usually called “gas giants”, that is a slight misnaming. While it’s true that relative to Mercury, Venus, Earth and Mars, the Jovian planets are indeed great big balls of gas, they still must have at their centre a solid rocky core, due to, if for no other reason, that over 4.5 billion years of their existence, asteroids, maybe even small planets, meteors, dust, and comets have all slammed into them. The rocky stuff, ultimately, must sink to the bottom forming a solid heavy element core. With that clarification made, let’s see what there is to be speculated upon.  

CHON: Any biological organisms that have been and are are being provided with appropriate CHON. Jupiter, Saturn, Uranus and Neptune have atmospheres rich in carbon, hydrogen, oxygen and nitrogen compounds.  The CHON box is ticked on all four Jovian planets. With respect to CHON, there are probably all sorts of way more complex organic molecules present in the four Jovian atmospheres but in such relatively small quantities that are dispersed widely and deeply so as to have escaped detection to date from our relatively faraway fly-by and orbiting probes. 

Suitable Environment: All the gas giants have a Goldilocks environment (at least in places). There’s no disputing that the cloud tops are bitterly cold; the deep interiors are way too hot. But, that alone suggests that there will be a Goldilocks area in-between, probably extending vertically for hundreds of kilometres, and extending as well horizontally around the globe. That volume, given their large size (relative to Earth), comprises a lot of Goldilocks territory. The habitable environment box on all four Jovian planets is therefore also ticked.

Mixing: Since Jupiter and company have very hot interior cores and the top of the atmospheres are extremely cold, and since heat rises and cold descends, that alone suggests that mixing in their primarily gaseous/quasi-fluid body must take place. Quite apart from that, all one needs to do is view time-lapse photography of their upper atmospheres to see all the turbulent motion that takes place. A tranquil pond the gas giants aren’t. The mixing box also gets a tick.

Energy: The Jovian planets all have an abundant energy supply, albeit not photosynthesis. Solar energy is highly unlikely to drive any Jovian biology because their atmospheres are very thick, and just like with our terrestrial oceans, things get very dark very quickly as one descends. However, chemical energy (chemosynthesis) is a strong possibility, like that which drives terrestrial hydrothermal vent communities. Then there’s infrared (instead of visible) radiation. Jupiter and company radiates much more heat that it receives from the Sun, the heat being slowly radiated outward from their original quota of primordial heat energy largely stored in the core of the planets.  The Jovian planets are fantastic places to visit if you’re fond of thunderstorms. Lightning really lights up their skies. Lightning is a prime source of energy for driving chemical reactions. Translated, all up, the gas giants are awash with potentially useful energy sources to drive any local biology. The available energy supply box is ticked too.

I suggest therefore that the soupy atmospheres of the giant planets have all the fundamentals required not only for the origin of life, but long-term habitability. There also have been over four and a half billion years for interesting biological happenings to have occurred. In addition, there’s a lot of volume in each of the Jovian planets for interesting stuff to happen in. The odds of things all coming and getting their act together in a small pond is small relative to a large soupy atmospheric ocean.

That all four Jovian planets have evolved life is problematical; that at least one has become a biological abode is much more certain, IMHO. Throw in one or more of their satellites like Europa and Enceladus that offer a liquid water ocean environment – well that’s a bonus. On top of all that, the Jovian planets have the highest gravities apart from the Sun. Now that means they suck in more than their fair share of other solar system debris – like comets and asteroids. Now comets and asteroids, the leftovers of that initial stuff out of which our solar system was made, also tend to be rich in CHON. No doubt they, via impacts with the Jovian planets, have contributed their CHON bit to the already potential suitability of those abodes as habitable abodes.

So what sort of Jovian life might we expect? On Planet Earth there is a sharp boundary between the atmosphere and the hydrosphere. On the four Jovian planets one just slowly merges into the other as one goes deeper and deeper. Terrestrial but airborne microbes, bacteria, germs, and other single-celled beasties, and their marine equivalents, like plankton and other unicellular critters, occupy both environments and are happy little campers. There’s no reason for there not to be Jovian equivalents that ‘swim’ and multiply in whatever region of the various four varieties of Jovian atmospheric ‘soups’ that have a comfortable, Goldilocks temperature regime. Of course that Goldilocks region could extend over hundreds of vertical kilometres in range. Some organisms might be better adapted to the thinner cooler upper regions; others to the murkier but warmer depths. Regardless, it gets dark fast so eyesight in the visible range of the electromagnetic spectrum might be problematical. Of course phosphoresce, not all that uncommon in marine life here on Earth, can’t be ruled out of course.    

If simple life forms originated and evolved on Jupiter, Saturn, Uranus and/or Neptune, then more complex and far larger ‘marine’ and ‘aerial’ life forms might be present too. Their trick, in order to stay in the Goldilocks zone, will be to have evolved the capability to maintain neutral buoyancy, but also to be able to rise if turbulence pushed them downwards towards greater heat; be able to sink if currents push them too high where chill factors come into prominence. So ‘gas bag’ floaters or ‘fish’ with ‘airbags’ might be possible Jovian alien life-forms. There’s no reason such critters couldn’t have developed a relatively sophisticated degree of intelligence. It’s possible to have intelligence without the means of developing technology as our whales and dolphins and even the humble octopus demonstrate.

The fly in the ointment is that our on-site investigation is going to prove to be an extremely daunting technological task, one that most certainly won’t happen in the next several decades – probably much longer. In the short term, the best bet is to use remote spectroscopic analysis of the atmospheric ‘surfaces’ or actual surfaces (in the case of the satellites) to identify biological signatures – compounds that just cannot be accounted for by non-biological processes. An example would be the pinkish-red areas on Jupiter’s moon, Europa.