Generally Thinking

Category: Philosophy

  • Alan Wallace on scientific dogmatism and materialism

    Alan Wallace, a Buddhist and writer on consciousness and meditation, talks about what he sees as the dogmatism and idolatry of the current, materialistic scientific paradigm.

    While there are some questions about materialism that no one has been able to answer, I don’t agree that the focus materialism is a form of idolatry. It’s just the framework into which all the other empirical data best fits. If another model came along that fit the data better, or data came along that did not fit the model, the prevailing paradigm would change. It would change slowly I’m sure, because paradigms do, but it would change. It’s a bit unfair to talk about current scientific models as if they are not works in progress — even if they slow, perhaps too slow, to change.

    Since there’s a finite amount of time and money that can be invested into consciousness research, it makes more sense to start your investigations from the standpoint of the most supported, the most accepted and the most validated paradigm, which is the material model. So you start from here, you make assumptions from here and then test them. A difficult question then becomes, at what point do you know that you’ve exhausted all the avenues of this model, and should start looking to others?

    Wallace says that a better way to study consciousness is to use our immediate experience, through our own observations, because this is a direct experience of consciousness, unlike second-hand self-report or brain imaging data. But I don’t see how this can answer the fundamental question – whether consciouness emerges from matter, as the materialistic view proposes, or whether matter emerges from consciousness, as the Buddhist and other views propose. How would introspection answer that?

    Observing the mind might well let you understand it, it might show you, as Wallace describes, this blissful second “layer” of consciousness, which Wallace claims does not arise from matter. How is it possible to know this from introspection? If you answer “You have to experience it to know,” then that’s an argument to authority (to people who have already experienced it) and I won’t be convinced by that, but at the very least it’s testable and a million times better than “you must have faith.” That it takes years and years of meditation to test this hypothesis is somewhat inconvenient, but at least its falsifiable.

    But let’s say I do experience it. How do I know it does not arise from matter? How can introspection separate something that does not arise from matter and never did, from something that does but has changed through years of mental training?

  • Opinions on free will by Steven Pinker, Michio Kaku, Sam Harris, Dan Dennett, Richard Dawkins and Lawrence Krauss

    In the videos below, six academics give their views on the tricky concept of free will. It seems hard to reconcile the materialist view of reality with the idea of free will, since anything that happens in the brain to bring about a choice had a cause, and that cause had its own cause, all the way back to the beginning of time. Some of these scholars seem, to me, to redefine the concept of free will in order to hold on to it. But see what you think:

    Steven Pinker – Skirts the question a bit:

    Michio Kaku – Rejects determinism, but seems to suggest that uncertainty or randomness is a form of free will:

    Sam Harris – Says it’s an illusion:

    Dan Dennett – It exists:

    Richard Dawkins and Lawrence Krauss – It’s an illusion, though it doesn’t make much difference:

  • 3D Printing – A new form of life?

    Imagine your kitchen floor is dirty. Since you don’t want to clean it yourself you log in to a robot design website, tell them that you want a robot capable of cleaning your kitchen floor. They give you a quote, you pay, and then they email the design to you. You click “Print,” the design goes to your 3D printer, and out pops a fully functioning robot, yours to command.

    That might sound far fetched, yet perhaps it’s not so far away. 3D printing has been around for around three decades and can now print objects in glass, metal, plastics and even bio-degradable materials. It has been used to create everything from jewellery, shoes, aeroplane components and even mechanical devices.

    Peter Schmitt of MIT has already successfully printed a mechanical clock, and is working on servo mechanism which could be used to make custom-built robots. Much has been made over 3D printing’s potential to revolutionise industry, putting manufacturing more strongly in the hands of garage hobbyists (if you think piracy of digital goods is a big issue, wait until everyone can pirate 3D objects!). But imagine if manufacturing was taken out of everyone’s hands.


    The Prusa Mendel RepRap 3D Printer from RepRap.org

    Evolution. Skip this section if you know it.

    Evolution works through a combination of replication, mutation and selection. Organisms develops through instructions contained within their DNA, which they gets from their parent/s. For example, daddy tiger and mommy tiger copy some of their DNA and store it in their sex cells. After an evening of tiger love, they combine these sets of DNA to create a new set of instructions for “building” baby tiger.

    But the DNA copying process isn’t perfect, and mistakes — called mutations — cause changes a given trait or characteristic — called a phenotype — of the organism to which that DNA will eventually belong. These phenotypic variations may affect the organism’s chances of surviving or reproducing.

    If a mutation in daddy tiger’s DNA causes baby tiger to have sharper claws, it might get food more easily and therefore have more chance of surviving and passing this beneficial mutation on. If it results in weaker knees, the tiger might not catch any food and then die without passing on it’s DNA. This is evolution through natural selection. It is this process that eventually produced intelligent humans like yourself, able to ponder their own ancestry.

    Replication, mutation, and selection. If machines can print 3D items, mechanical devices and even robots, is it possible to create “life,” or at least, objects that reproduce and whose offspring is subject to selection pressures?

    Replication

    Replication would require a 3D printer able to print, and construct, itself. The RepRap machine, designed by Adrian Bowyer of Bath university and seen the video above, is almost there. It knows how to print the plastic parts necessary to build itself. With the ability to build components out of different materials, it doesn’t seem infeasible that a modified RepRap could include construction as well as production capabilities. The printer contains a small hard drive, and the parent copies its own design onto its child’s hard drive. Replication achieved.

    Mutation

    Naturally, you want your printer to build things perfectly, so designers will try to remove mutations from the process. Also, the “DNA” in this analogy is the design on the computer, which we know is highly resilient to copying errors. However, you could imagine some flaw that creates mutations in the child design, or a non-natural form of mutation where the printer theorises about future designs that would increase its child’s ability to reproduce itself, and tests these, keeping logs of previous “tests” in its hard drive.

    Selection

    Natural selection could work here, as the printers need access to a source of power and raw materials. For power, you could imagine each one has a solar panel, and tests theories on how to build more efficient ones. The raw materials area a harder part though.

    Automation

    At what point would you be able to leave the printer running, then move all humans off the planet with confidence that they would continue to thrive? Presumably, you’d need to give the printers a head start, for example, the ability to build none-replicating drone scouts to look for raw materials, and transport robots to return it to the replicating “queens,” with the queens playing a sort of real-life game of Civilization. Or perhaps the queens themselves would produce new queens that could move and source the raw materials. Perhaps the queens see scouts from other printer families as threats, and build warrior drones to fight their resource wars.

    If self-replicating machines were made that were capable of finding the resources and energy they needed to continue to reproduce, at what point do you call it life?

    Of course I’m just thinking out loud with all this, but I think it’s interesting and fun to consider the possibilities. Many people think of 3D printing as a door to a techno-utopian future where the means of production is held inside every household — and maybe it is. However, if we manage to build completely self-replicating machines with the capacity for mutation and a form of selection pressure, I’m just saying, they might lead to a different future.


    🙂