Hi, I’m Alex.
Every once in a while I come to LessWrong because I want to read more interesting things and have more interesting discussions on the Internet. I’ve found it a lot easier to spend time on Reddit (having removed all the drivel) and dredging through Quora to find actually insightful content (seriously, do they have any sort of actual organization system for me to find reading material?) in the past. LessWrong’s discussions have seemed slightly inaccessible, so maybe posting an introduction like I’m supposed to will set in motion my figuring out how this community works.
I’m interested in a lot of things here, but especially physics and mathematics. I would use the word “metaphysics” but it’s been appropriated for a lot of things that aren’t actually meta-physics like I mean. Maybe I want “meta-mathematics”? Anyway, I’m really keen on the theory behind physical laws and on attempts at reformulating math and physics into more lucid and intuitive systems. Some of my reading material (I won’t say research, but … maybe I should say research) recently has been on geometric algebra, re-axiomizing set theory, foundations and interpretations of quantum mechanics, reformulations of relativity, quantum field theory’s interpretation, things like that. I have a permanent distaste for spinors and all the math we don’t try to justify with intuition when teaching physics, so I’ve spent a lot of my last few years studying those.
I was really intrigued by the articles/blog posts? on what proofs actually mean and causality a few months ago; that’s when I started reading the site. I’ve spent the better part of the last year sifting through all kinds of math ideas related to reinterpretations or ‘fundamental’ insights, so I hope hanging around here can expose me to some more.
Oh, and I’ve spent a good amount of time on the Internet refuting crackpots who think they solved physics, so I, um, promise I’m not one.
I’m a programmer by trade and have a good interest in revolutionary (or just convenient) software projects and disruptive ideas and really naive, idealist world-changing ideas, which is fun.
I have read some of the sequences and such but—I guess I’m a rationalist at heart already, maybe because I’ve studied lots of logic and such, but a lot of it of the basic stuff seemed pretty apparent to me. I was already up to speed on Bayes and quantum mechanics, for example, and never considered anything other than atheism. And I already optimize and try to look at life in terms of expected payoffs and other very rational things like that. But, it’s possible I’ve missed a lot of the material here—I find navigating the site to be pretty unintuitive.
I’m based in Seattle and I hope to go to the meetups if they… ever happen again. I mostly just like talking to smart people; I find it makes my brain work better—as if there’s some sort of ‘conversation mode’ which hypercharges my creativity.
Oh, and I have a blog: http://ajkjk.com/blog/. I’m slightly terrified of linking it; it’s the first time I’ve shown it to anyone but friends. It only has 6 posts so far. I’ve written a lot more but deleted/hid them until they’re cleaned up.
I found that idea so intriguing I made an account.
Have you considered that such a causal graph can be rearranged while preserving the arrows? I’m inclined to say, for example, that by moving your node E to be on the same level—simultaneous with—B and C, and squishing D into the middle, you’ve done something akin to taking a Lorentz transform?
I would go further to say that the act of choosing a “cut” of a discrete causal graph—and we assume that B, C, and D share some common ancestor to prevent completely arranging things—corresponds to the act of the choosing a reference frame in Minkowski space. Which makes me wonder if max-flow algorithms have a continuous generalization.
edit: in fact, max-flows might be related to Lagrangians. See this.