In my last post, I complained about time travel as it appears in television, movies and fiction in general. I felt that there were a number of inconsistencies about time travel as to make it so implausible as to render any story based on it completely unenjoyable.
Clearly I’m in the minority in this opinion. Time travel stories continue to delight, generation after generation. Why should this be, if my objections are so irrefutable? Well, one reason is some people just like a good story and don’t care how unbelievable it is. As I pointed out in my last blog, Superman’s “impossible” ability to fly doesn’t deter my enjoyment of his adventures (although I prefer Batman). However, there's more to it than that.
The Objections to Time Travel

I raised four basic objections to time travel as portrayed in fiction: Physical: As one approaches the speed of light, required for going back in time, mass becomes infinite, effectively destroying the time traveler; Metaphysical: Specifically the Grandfather Paradox (you go back in time and kill your grandfather, therefore you are never born and cannot go back in time to kill your grandfather, etc.) and the Ontological Paradox (Future Craig hands me an envelope which he tells me to hold on to for five years. Five years later I go back in time and hand myself the envelope. Where did the envelope come from?). Logical: Specifically, the Tourist Objection; If time travel is possible, how come we don’t know about it yet? We should be being visited by an effectively infinite number of time travelers all the time, where are they? And Aesthetic: How can any story have internal consistency if someone can always go back in time and change what happened?
I mentioned that there are rebuttals to all of these objections (I excepted the aesthetic but I will stipulate that for most people, if the other objections are satisfied the aesthetic one should be as well, even if I personally am not comfortable with it), and hence, some time travel stories that work. So here goes:
Let’s start by addressing the Metaphysical objections. The famous grandfather paradox and the ontological paradox. There are two main ways that philosophers approach the problem of time travel paradoxes: The Many Worlds Theory and the Novikov Self-Consistency Principle.
The Novikov Self-Consistency Principle
The Novikov Self-Consistency Principle simply states that anything that cannot happen, will not happen. In other words, if you go back in time and try to kill your grandfather, you will always fail. Your gun will misfire at the last minute, you will have shot the wrong person, or the right person but it will turn out that he wasn’t your grandfather after all, etc. The television show LOST makes use of the self-consistency principle. Daniel Faraday repeatedly explains that no matter what they try to do, the future will not change, because whatever happened is immutable and has already happened, even if the time-traveling protagonists are at an earlier place in the timeline. Ben cannot be killed as a child, the Dharma Initiative cannot be saved, simply because it didn’t happen.I do not find this theory particularly compelling. There is nothing in the universe to suggest that it actively attempts to sort out paradoxes at a macro level. If you shoot someone, they will die, and to suggest that the universe somehow “knows” to protect them seems to be so fanciful as to make the theory meaningless. This also does not explain the ontological paradox.

The Many Worlds Theory
The many worlds theory, popularized in D.C. Comics with their “multiverse,” and based on the Heisenberg Uncertainty Principle which says that the states of certain particles at the quantum level are not fixed until observed, and that until they are observed they exist in multiple states at once, is much more compelling. It is referenced in Back to the Future and used in comic book literature and other works of fiction, including the television show Sliders and the Michael Crichton book “Timeline.”
The idea of the multiverse is that the universe as we know it is just one of many possible universes that exist in different dimensions, and that each choice we make represents the universe that we fix in time out of the infinite universes that are possible. As it pertains to time travel, the theory goes that when we go back in time and change something, we create an alternate timeline. Our original timeline, the one that spawned us, continues on into infinity while we exist in the new, altered timeline.
This idea seems to work pretty well. It addresses the grandfather paradox: when you kill your grandfather, you create a universe where you never existed, however you, the killer, came from a parallel universe where you did exist. It addresses the ontological paradox too. In Terminator, Kyle Reese is sent back in time to protect Sarah Connor so that John Connor will be born. He ends up becoming John Connor’s father. According to the theory, there was a “prime” universe where John Connor had some other father. In that universe, Kyle Reese was sent back in time, creating an alternate universe where Kyle Reese is John Connor’s father, as we see in the movie.

How this is handled can get complicated. In Back to the Future, Marty and his siblings start to disappear when it seems that Marty may have prevented his parents from ever falling in love. If this is an alternate universe, that shouldn’t be an issue. In “Timeline” Crichton addresses this problem by suggesting that events in an alternate timeline have a “ripple effect.” That over the course of time, minor changes happen in the original timeline so that it will “catch up,” and become consistent with that timeline. In other words, events in one timeline can have an effect on others.
I feel that the many worlds theory is pretty effective in addressing the metaphysical objection, and as I stated in my first post, the metaphysical objection doesn't trouble me that much. The many worlds theory does also address the logical objection to some extent. If travelers going back in time are always creating alternate timelines, we shouldn’t expect to ever meet one in our “prime” universe. However I don’t find this entirely compelling. Somehow it seems that we still might receive a visitor from an alternate future, so that our prime timeline is their alternate one, or that the ripple effect should still produce premature time travel in our universe. I feel that there are stronger rebuttals to the “Time Tourist” objection, which is tied in with the rebuttal to the physical objection (hint: Wormholes), and I’ll discuss those in Part II.



Again, the physical objection is no big deal. Superman shouldn’t be able to fly either and I’m fine with that. I’m also not too caught up in the metaphysical problems, but I should address them as well.

For as long as human beings exist in time, people will be going back, making anachronistic holes in the time line like so much swiss cheese. With an infinite number of travelers, eventually one will make time travel technology possible at an earlier time, which will then lead to infinitely more travelers between that earlier time and other times, until time travelers are EVERYWHERE. And as far as I can tell, they are not.


and I don't think that it has any bearing on her position on gay marriage. I don't really think Miss Prejean is a bigot, I think she's a kid who was taught bigotry by her family and friends and just doesn't know any better. Perhaps this controversy will help her learn. Then maybe something useful will have come out of a beauty pageant for once.




The second main event ever, what makes this one notable is how it ended. Back in 1972, poker was a game of smokey backrooms, and unlike today, no one was interested in becoming a celebrity, save one: Amarillo Slim Preston. When it reached the final three, Doyle Brunson simply took his money and withdrew, an option not available today, and Puggy Pearson dumped to Slim to avoid the spotlight. Slim made the most of the win though, and by appearing on programs like the Tonight Show, became the first poker celebrity and helped to improve the game's image, decades before the poker boom.
What's memorable about 1998 is it was one of the most watched finals before the poker boom. Scotty's goading comment to runner up Kevin McBride, causing him to go all in when he could only play the board, is one of the enduring memories of older poker fans, and Scotty remains one of the most well-known and top pros in the game today.
Two years before Chris Moneymaker and hole card cameras put the WSOP on the map was a final table that ESPN would drool at the prospect of televising today. In addition to eventual champion and future WPT main event champion Carlos Mortensen, the final six featured two time 2nd place finisher Dewey Tomko, former champion and all time bracelet holder Phil Hellmuth, two time final tablist and well-known poker celebrity Mike Matusow and popular player and commentator Phil Gordon. Even more amazingly, probably the most recognizable face in poker today, Daniel Negreanu, just missed the final table, finishing 11th.






Off the bat,
The movie looked cool. There was no doubt about it. Modern technology enables the filmmaker the ability to bring this material to life in a way that no one could have ever dreamed possible in 1985, and its great to have the opportunity to see it.


While people unfamiliar with Watchmen will probably think of characters like 
Many poker players deep in their hearts believe that they are stronger players than their results would indicate. Now, poker "experts" will mockingly chalk this up to an excess of ego or some fundamental misunderstanding of the game, but in fact it is much more complicated than this. We find the same misattribution in chess, where rated players will often overestimate their "strength" as being several hundred points higher than their rating, attributing the differential to some flaw in the rating system.


The idea of hunting animals for sport is not for me, although I get it. Without recreational hunters, we probably don't have professional hunters, and I do think that it is natural and healthy for humans to eat meat (in moderation). However, playing an animal hunting video game makes no sense to me. The whole idea of video games is that you can kill PEOPLE with no consequences. To me that seems a lot more fun and challenging than killing a cute animal.





