In the past week, I've gotten to see more of my high school friends than I have in the past two months. What's most remarkable is how little they have changed. They are going through rapid and massive ideological shifts, yet the cores of their personalities remain the same. Craig remains a tech geek, despite being a cool kid at Texas Tech. Kathryn, despite being the new party girl at Carleton, remains introspective, shy, and wise. From what I hear about Jim, he's the same superconfident, highly volatile, and argumentative kid he's always been.
I've remained, at my core, the same frustrated kid who tried, in third grade at the Catholic school, to find a scientific explanation for the existence of heaven. Jasper Cheing can corroborate my story. To this day, I have failed to find one. To be sure, I stopped trying a long time ago. I have moved on to another landscape as ethereal as heaven - the universe around us. I realized, a long time ago, that there could be no scientific explanation for heaven - it exists beyond the reach of our scientific tools and equipment. Indeed, it exists far beyond the cosmic event horizon. Any evidence would have to be biblical or metaphysical. The universe is different - we can qualify and quantify it. Our scientific equipment can measure the universe. We can test our theories and our hypotheses and prove them right or wrong. We've been doing it in an organized fashion for hundreds of years. We have almost always progressed to better and more accurate theories. We have not yet, however, discovered the whole truth.
Once I realized all of this, I also realized that the pursuit of this truth was the only way I could lead a life to which I could ascribe meaning. Studying the universe has been at the center of my universe, as everything I do is for the ultimate dream of better understanding the universe. However, in a matter of days, I have been dealt a crushing blow in my hopes and aspirations. Two people, with similar ideas, have stopped me dead in my tracks and have stricken me with fear. I'd like to reprint a comment e-mailed to me by my good friend, Adrian Adames. He's also a physics major at MIT. Below is his unaltered comment:
I was reading your blog kid. You said in your blog that you were contemplating problems we have in our society and physics is what you came up with. You didn't look hard enough, and I don't know how you can compare AIDS in Africa to understanding the universe.
Yes, you're right. We're all going to die, and in the big scheme of things we are insignificant, but I don't think that you /really/ think that. I believe that all humans think that they have special meaning, and they're more than organic machines approaching their expiration date. Everything that happens within humans can not be explained by simply stating that electric impulses in the brain make one see things that way or this way. Emotions, experiences, I don't know. The 'abstract' is what we are, and these things cannot all be explained through physics or any science. I'm getting carried away. I don't have any direction right now. I'd rather talk in person so you could direct me. Ok, final thought.
Humans know very little about how the universe works. It's all theory. The big one, General Relativity, is just an approximator. We don't know much about anything.Only 4% of the universe is visible. Everything else is dark matter, dark energy,or whatever else it is. All I'm saying is that you will never come close to understanding the universe. You won't even come remotely close to understanding the small part of the universe that we know of right now. I think that you're going to change a lot Nest. You still might love physics, but your perspective of the world, of the abstract, is going to change.
P.S. I agree with most of what I said here. For some of it i'm just bullshitting. I just like playing devil's advocate and arguing with you. You need to get used to people challenging your beliefs anyway right? Aight kid. I'm tired of writing. I'm out like a light bulb.
-Adrian
Though I still firmly believe that humans are insignificant, blindly following whatever makes them feel as if they are significant, I think Adrian's argument against that belief is excellent. Do I
really believe that? If I'm human, then no, no I don't. I only know it. But I don't believe it. It's why I write, it's why I study, it's why I talk to friends, and watch films, and eat food that's bad for me, it's why I wash my car, listen to my iPod, and go to Church, and it's why I think about you and me and all of us, day after day. I think that this matters. It has significance. It has
meaning.
How did I come up with physics being much more important than AIDS in Africa? Well, because I know we're insignificant. In the blink of a cosmic eye, no matter what we do, we're gone. Extinguished by a universe filled with exploding stars and shooting asteroids. Does that mean I will not do everything in my power to ease human suffering? Unfortunately, no. If I could stick to my guns, I'd realize that the greatest deed I could do is to dedicate my mind, body, and soul to understanding our universe. However, I care too much about our survival to not worry about global warming, diseases, nuclear proliferation, poverty, civil rights, etc. I just saw 'An Inconvenient Truth' in Dallas (review later) with my family and, though I knew all of this already, it gave me hope that people would realize that the controversy that "exists" doesn't really exist. At least, among the people who study global warming. The scientific evidence is overwhelming. The only thing to figure out is how soon? and how bad?
I digress. The crux of the matter, and Adrian's main point is that no matter how hard I or anyone tries, we will NEVER know the universe for what it is. It is far more complex than anything our science is capable of describing. Craig Milner, a high school friend, said nearly the same thing this weekend. He is a psychology major at Texas Tech, but he's contemplated these issues before. His hypothesis is simple because it requires no science, only logical deduction: we simply cannot know everything about the universe because if we did, we would be unable to cope with it. Humans are inherently incapable of knowing everything because it would spell out the end of our existence. We would cease to care about anything because we would know everything. What more is there to care about? What more is there to fight for? To live for? To have peace for? In fully knowing our meaning, it loses all meaning to us.
After going through it in my mind, I think both of their arguments lead to an inexorable fact: our future, however long it may last, does not include Einstein's dream, my dream, and the dreams of physicists everywhere. The universe will forever elude us, as it has done in the past so well. The pattern was always the same: just when we come to believe in the theories we have constructed, they are torn down by unfortunate new discoveries. The simple Greek theory of four elements proved to be too simple as we discovered over a hundred natural elements with the kicker of an unknown number of human made elements possible. How does this complex nature fit into any sort of theory we can construct? Ah, but it became simple again as we realized that all elements had basic building blocks in common - atoms composed of electrons, protons, and neutrons. Then we realized there were many more particles: muons, neutrinos, mesons, hyperon, and hundreds more. Then we discovered quarks, and the world became simple again. As patterns emerged, the outlook brightened, as the resulting quantum field theory could explain everything about these particles. Still, there was the awkward battle between Einstein's theory of relativity and quantum mechanics. Neither worked together, though they both worked beautifully apart. Then came string theory in the mid 1980's, and with it came one of the greatest senses of anticipation in the history of physics. The father of string theory, Leonard Susskind, put it this way in his book, 'The Cosmic Landscape:'
"There was a great sense of euphoria in the mid-1980s, when string theorists thought they were zeroing in on the final answer, a single, unique theory that would explain why the world is the way it is."
Needless to say, the final answer was more elusive than they had anticipated:
"Today we know that the success "just around the corner" was a mirage. As we learned more about string theory, three unfortunate things began to happen. Number one was that new mathematically consistent versions of what was supposed to be a unique theory emerged exponentially. String theorists watched with horror as a stupendous Landscape opened up with so many valleys that almost anything can be found somewhere in it. Number two was that in searching the Landscape for the Standard Model, the constructions became unpleasantly complicated. Finally, the potential candidates for a vacuum like the one we live in all had a nonzero cosmological constant." (blogger's note: Scientists had hoped for no cosmological constant - which is difficult to work with)
The hope that string theory will be an ultimately simple theory has faded over the years. All of these years, we have stretched our minds and explored our surroundings in vain, always searching and always finding greater and greater mysteries. The universe has unfolded before us in a way that let's us believe that we are making progress, yet it keeps unfolding and unfolding. We've made several advances, but what is it in comparison to the unknown number of advances we have yet to make? What is it in comparison to the advances we will never make? Having known about these previous frustrations in history, I had begun to lose hope in our ability to ever find Einstein's grand unified theory. After hearing Adrian and Craig echo similar sentiments, I have all but given up.