No further comment.
Reason is a limited process because it arises from consciousness, which observes the universe via filters. The mind has physiological filters (ex, wavelengths of light you can perceive, frequencies of sound you are limited to), chemical filters (the specific biochemistry of your brain, your mood and emotion, etc), and mental filters (pre-existing ideas and biases, fidelity of your metal models and assumptions, simple lack of knowledge). These are all best understood of as filters between you and the “objective” truth of reality. The universe as you observe it and understand it is vastly more complex than you can understand. The process of reason happens only with information you can process at the end of that chain of filters, so you are always operating on an insufficient dataset.
The brain is actually evolved to extrapolate and infer information based on filtered input. The brain often fills in the gaps and makes us see what we expect to see rather than what is actually there. Simple examples are optical illusions and the way the brain can still make sense of the following sentence:
Arinocdcg to rencet rseaerch, the hmuan brian is plrectfey albe to raed colmpex pasasges of txet caiinontng wdors in whcih the lrettes hvae been jmblued, pvioedrd the frsit and lsat leetrts rmeian in teihr crcerot piiotsons.
As a result, there are not only filters on what we perceive but also active transformations of imagination and extrapolation going on that actively modify what we perceive. These filters and transformations all happen “upstream” from the rational process and therefore reason can never operate on an untainted, objective reality. Despite the filters and transformations, the mind does a pretty good job, especially in the context of human interactions on the planet earth (which is what our minds and their filters and transformations are optimized for, after all). However, the farther up the metaphysica ladder we go, the more we deviate from that optimal scenario for which we are evolved (or created, or created to have evolved, or whatever. I’ve not said anything to this point that most atheists and theists need disagree on).
A good analogy is that Newton’s mechanics were a fantastic model for classical mechanics, but do not suffice for clock timing of GPS satellites in earth orbit. This is because Newton did not have the tools available to be aware of general relativity. Yes, we did eventually figure it out, but Newton could not have ever done so (for one thing, his civilization lacked the mathematical and scientific expertise to formulate the experiments that created the questions that Einstein eventually answered).
Godel’s theorem makes this more rigorous by demonstrating that there will always be statements that can neither be proved nor disproved by reason. In other words, as Douglas Hoftstadter put it, Godel proved that provability is a weaker notion than truth, no matter what axiom system is involved. That applies for math and it applies to philosophy, it applies to physics and it applies to the theism/atheism debate.
Related – more detailed explanation of Godel’s Theorem and implications on reason.
The beard is not quite white enough, the belly not quite fat enough, and the List is on a blackberry (which means it’s being checked twice.. a minute). But we knew Santa Claus was Muslim all along…
(Yup, that’s me, caught on camera at the mall 🙂 A close friend spotted it and sent me the screenshot on facebook.)
If time travel is possible, then the present is the past for an infinite number of futures. (Assuming the time stream is changeable by travelers, and not fixed).
In an infinite number of futures, there are a sub-infinity number of those futures in which a time traveler exists who finds today, the day you are reading this blog post, a fascinating and pivotal moment in history.
Therefore, even if only a small fraction of those infinite future travelers obsessed with our today actually bother/have the means to travel to today, there are still an infinite number of them.
Therefore, today there should have been an infinite number of time travelers appearing from an infinite number of different futures. Or, as Douglas Adams would have said, “whop”
Of course the same argument holds for every moment of every day in all of recorded history, so basically we should be inundated with infinite numbers of time travelers arriving at every moment of time for all time.
Since that is clearly not happening, time travel must be impossible.
I’d love to see a What-If XKCD on the idea of an infinite number of time travelers arriving today, actually… would probably be a mass extinction, the Earth would suffer gravitational collapse, and we’d be in a black hole. I think.
In Wisconsin, we got the tail end of Winter Storm Nemo last night, with just a few inches, and today it’s a beautifully sunny day. The outlook for the east coast however is between a foot and two feet, which is truly monstrous.
But no matter how much it snows (and living in Wisconsin these past few years, I’ve seen and shoveled my fair share), I can’t resist the snow. It is just beautiful, it always manages to enchant me. One of my favorite writers on the internet, Auston Habershaw, penned a perfect paean to snow that speaks to me as well as for me:
Snow is something enchanted. It changes the whole world, flake by flake, degree by degree, until we emerge from our hiding places and find ourselves somewhere new and clean and fresh. The drab ordinariness of our daily world is now blanketed in silence and light, glowing beneath an invisible sun. You breathe deep, and the air sears your lungs with its chilly clarity. It’s like waking up from a bad dream and letting all the heavy, sticky violence of your nightmare fall away. There ‘s just you, alone, calm and surrounded by the quiet beauty of a new world.
It is no accident to my mind that CS Lewis had Lucy stumble through the wardrobe and into a Narnia locked in eternal winter. There seems nothing else in nature that captures the mystery and enchantment of life than a wood cloaked in shimmering ice.
there’s more, read the whole thing. I shared it on Facebook too and I hope it goes viral. Snow is beautiful. Even if you live in Northrend.
Also, did you know that it’s the Weather Channel that started naming these winter storms, not the National Weather Service? Literally an invention of their marketing department, and inspired by Twitter. Go figure.
By way of this entertaining tall tale about how really nasty chemical compounds make for the best rocket fuels (with some conspiracy theorizing about “red mercury” and Chernobyl thrown in for fun), I ended up reading about FOOF, and was treated to one of the more entertaining lines of text I’ve read in some time:
If the paper weren’t laid out in complete grammatical sentences and published in JACS, you’d swear it was the work of a violent lunatic.
(here’s the paper online with link to full text PDF!)
So, apparently there was this big hoo-hah today about some political thing or the other. But the real significance of today is this:
That’s right – today is the day that Doc set as the Future in the first Back to the Future movie!
UPDATE: No, it wasn’t. Three years too early. Sigh.
What’s more, today is also June 28, or “6/28” – which means it is Tau Day! What is tau, you ask? It’s the true circle constant (6.28), unlike that upstart Pi. For more details on the primacy of Tau and the centuries-old conspiracy that is Pi, see the Tau Manifesto, though really I think this image says it all:
and here’s a snappy little music video too:
so, enjoy today, a most historic and important day! And don’t worry/gloat too much about that other thing. It’s really not as important as this.