“Once the decision has been made, close your ear even to the best counter argument: sign of a strong character. Thus an occasional will to stupidity.”
–Friedrich Nietzsche, Beyond Good and Evil
We live in a world of many choices: the foods we eat, the careers we choose, the relationships we foster, every consumer good we buy. We tend to have more than a binary yes/no choice, but rather many options, often with complicated trade-offs involving many dimensions. I like peanut butter and jelly sandwiches, but which peanut butter should I get: Crunchy or creamy? Reduced fat, normal fat or normal fat with extra omega-3’s? All-natural or not? Store brand or name brand? Which jelly: strawberry, grape, apricot-pineapple, or countless other fruit choices? Jam, jelly or preserves? Low sugar, low sugar with other additives, or normal? Relative balance of cheap, healthy and tasty?

Even simple decisions like this can present a crippling array of possibilities, over which we may feel some pressure to maximize and find the “right one”. But there’s a fine line between giving a little thought to decisions here and there, and agonizing over labels and minor cost differences at every choice.
Unfortunately, it’s not just minor matters that present us with myriad options. Buying a car: New or used? Lease or purchase? Cash or finance? Make, model, color, options, all of which we can easily find extensive information about. Presumably the more information we have — the better informed our decision is — the better our choice will be. This is what I might call the naive rationalist assumption.
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Since Einstein’s work on relativity, we have come to think of our universe not simply as involving three spatial dimensions and one time dimension, but rather as a four-dimensional entirety, labeled space-time. Roughly speaking, instead of thinking there are different versions of an object (my car in the past, my car in the present, my car in the future), we say there exists simply a 4D hyper-object that encompasses all those states of the car at what we think of as all different times, and our experiences with an object are really experiences with particular ’slices’ of that hyper-object.
Thinking in terms of more than the familiar three spatial dimensions can be challenging. In the late 1800’s, Edwin Abbott used his novel Flatland to show us how a 2-dimensional being could eventually come to recognize its world as being contained within a higher-up 3D world, and to suggest we three-dimensionites might have similar trouble recognizing higher dimensions that contain our own.
Of course, mathematicians have long dealt with non-Euclidean geometries, including those of higher dimension, and cosmologists today continue to debate the possibility of even more dimensions actually existing. For example, some string theorists are now investigating M-theory, which posits 11 dimensions of space-time, and may involve multidimensional objects called ‘branes’. In this theory, our universe would be considered a 4-brane (with its three spatial dimensions and one time dimension), but there could be other branes of different dimension.

Building off of this (still-nascent and controversial) field, John Smythies over at The Psychological Channel presents what a “new paradigm” of consciousness he calls extended materialism.
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Stephen Pinker has a pretty decent article up in the New York Times called My Genome, My Self about the topic of personal genomics, i.e. getting your DNA analyzed to discover your own ‘genetic code’. For example, having a certain set of alleles (versions of a gene) guarantees that your eyes will be a particular color. You may have genes that predispose you to various diseases, or that are associated with high intelligence. The more we learn about genetics, the more subtle and fine-grained become the predictions that accompany possession of particular alleles.

Some limited personal DNA profiles are now available for under $400 and people are worried that as this information becomes commonplace, it may be used against them. That is, we may find job discrimination based on genetic makeup: “Well, this candidate appears a good fit, but her profile shows a predisposition toward anger problems and a high chance of developing health problems that impair her ability to work or stay with the company.” Likewise, insurance companies may refuse to insure those with risky genes, or to make their coverage exorbitant. If someone has an allele that makes them 87% likely to develop M.S., an insurance company may deem them too risky to insure.
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