Thought Experiment on Entropic Restrictions in Time Travel

In a discussion of time travel, questions will come up about freewill and causation.  I have always found this conversation frustrating because the common view is just so plainly wrong.

The common view is the one espoused in Back to the Future, which arguably is where most Americans get their understanding of time travel. (I guess as opposed to empirical time travel science?)  Everyone knows this so I don't even have to summarize it, but here goes:  You go back in time but you have to watch out that you don't accidentally change anything, because if you change something because then you will change the future.  In particular, you need to make sure that your introduction to your parents when they were in high school doesn't keep them from falling in love, or else you would undo your own existence, the fact of which alone should point out that there is something screwy here.

source

In this idea, because you can change the future you came from, there are different "timelines".  When you go back in to the past you go to a different timeline or split the universe or whatever and the effects of your meddling will be in the new timeline and not the one you came from.

So why do we think there are multiple timelines?

The Berenstein Bears: We Are Living in Our Own Parallel Universe

When I was growing up, all through elementary school we would watch movies and read books about the Berenstein Bears.  I still even remember the theme song for the TV show, mostly, which wasn't a song so much as a guy in a gruff bear voice speaking in rhyming couplets.  If you don't know who the Berenstein Bears are, they were nuclear family of anthropomorphic bears who lived in a tree out in Bear Country and had family-based situational comedy and taught life lessons.  And Ma Bear always wore a blue shower cap.

These bears appeared in a series of children books by the married Stan and Jan Berenstein, that later became a TV series, that got beamed to 3rd grade classrooms all over the country.  Anyone between the ages of 23-30, and maybe more, will know who the Berenstein Bears are.  And they will remember the flashy cursive bubble-letters on the front of every single book and in the opening credits of the show.  The bubble letters that spelled out "Berenstein Bears".

About a year ago, Jan Berenstein passed on, as had Stan some time before.  And appearing in headlines across the internet, I saw "Jan Berenstain Dies at 88".

BerenstAin.

They misspelled her name.  In her obituary.  Gosh, that's really just morbidly embarrassing.  "Berenstain" doesn't even make sense.

On Reading "His Dark Materials"

I originally wrote this February, 2011 on a different blog, but decided to repost it here.

Lyra and Iorek

This week I read the entire His Dark Materials series.  I started with Golden Compass idly at about ten last Sunday just to give me something non-work-related to do before I went to bed.  I finished the Amber Spyglass yesterday evening sometime.  I put aside work and school and sleep (I slept in my office one night to get more reading time) and to some extent eating as I read through the series.

It's a really, really good book.

I Hope It Doesn't Have Gears on the Cover...

Note from Reece: this is a guest post by one of my friends, explaining his position in a running debate between ourselves.

That's how you know a book isn't worth reading; if it's got gears on the cover.

A close friend of mine and I have a running bet on the nature of steampunk. I think the premise of steampunk as a genre is inherently flawed whereas my friend thinks the genre has potential to be good, if done right. It seems like a somewhat unfair bet; If he can provide one example of a good and well written steam punk novel he wins the debate, while I can only be right if from now until the end of time no one ever creates a steampunk masterpiece.

I am fairly confident in my chances of winning.

The Sorting Hat Is a Jerk

I've posted before summarizing, briefly, why Harry Potter is terrible.  Essentially, it is this: she took a kids-book fairytale world and slowly moved it in to the realm of adult speculative fiction.  Plot elements that existed for no other reason than to entertain and light up the imagination now were expected to conform to some kind of sense, so some kind of sensical explanation was fabricated post-hoc, and those explanations fail to explain.  Partly they fail because the explanations don't really make sense if looked at, but they primarily fail because characters in earlier books behave as though they are entirely unaware of the way that their own universe is supposed to work.

Total Jerk

Let's look at one of the more iconic characters in Harry Potter, the Sorting Hat, which (who?) is charged with sorting first years in to their respective houses.

Either the Sorting Hat is objectively bad at its job, or the Sorting Hat is an actively malicious and evil entity bent on destroying the wizarding world.

Fantasy Fiction is Broken

A friend of mine recently "read" The Sad Tale of the Brother's  Grossbart.  I use scare quotes, because he put the book down in to the third chapter, it was just so abhorrently tasteless.  I respect his opinion a lot; he's the one who got me started on fantasy with recommends like the Game of Thrones.  He and I regularly trade opinions on books we've read, and he has yet to steer me wrong.

This book, he gave the much coveted award of Worst Book Ever.

The Dark Knight Rises: Batman Punches Criminals

Last night, I went to see The Dark Knight Rises.

I don't normally go to see movies, because most of them are simply terrible.  Typically, they offer nothing more than crude jokes and flashy special effects, with explosions and jiggly ladies.  The times when I do go to see a movie, it is because a friend has harassed me enough into seeing it, and I leave half wanting to demand my friend repay me for my wasted money and my time.  Really, my most enjoyment from movies tends to come from abusing the fans by loudly insulting it
to them.

But not so with Christopher Nolan movies.  Because Christopher Nolan makes great movies.  He makes movies with great depth, yet he conveys the entire message through the visual medium of film.  He effectively uses movies to communicate messages and stories every bit as intriguing as anything you could read in a book.

So I went to The Dark Knight Rises excited, prepped, stoked, ready to see a master do what he has mastered... and I left disappointed.

There aren't any "spoilers" below; nothing like "Dumbledore dies" anyway.  Nothing you couldn't have learned by watching a trailer.  Maybe you'd want to see the movie first before reading, anyway, just to be sure.