When I was growing up, I always thought the future would kind of drop all at once. One day, we would just have bubble cars, jet packs, phasers, universal translators, and all the gadgets that made science fiction so shiny and wonderful.
Of course, progress doesn't happen all at once; it happens step-by-step, although it does pick up the pace as new inventions make breakthroughs easier and easier. But to find yourself in that dream-filled future, you'd have to take one epic Rip Van Winkle nap and wake up to it all.And yes, scientists are working on that, too — and they've just taken a big, exciting step towards their goal.
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But there's a dedicated group of people who see a future in freezing our brains to cheat death and extend our lifespans.
A pair of scientists successfully froze and thawed a rabbit brain, with no sign of damage.
It's another incremental step. Even though the rabbit's brain wasn't functional after it was thawed, the process demonstrated that "the structure of the delicate synaptic circuitry of the brain could be preserved over indefinite time spans,” according to Kenneth Hayworth, director of the Brain Preservation Foundation.
That doesn't mean that a row of tanks filled with person-sicles just passing time until the future catches up with them is around the corner.
There are two schools of thought about how to revive people-sicles: biologically or through brain-uploading.
The trouble with brain-uploading is that we don't really know what makes us, well, us. Although at present neuroscientists believe we really are only patterns and information, there are a couple of options — scanning the brain, or destroying it slice by tiny slice — for obtaining that pattern and information but no guarantee that either would work. But the fact that the rabbit's brain still had all the connections preserved is promising. In theory, in the future a process for copying that information and pasting it onto a new brain might be possible.
But if it's possible, if you upload your brain and future scientists put the pattern and information that was you into a new body, will it be you, or will it be a clone of you, an empty shell without your sparkling personality and all the intangibles that make you, well, you?
What's more, even if identity survived brain uploading, it would be difficult for anybody who went through the process to prove that they were, in fact, themselves.
For all the unanswered questions, the end goal of cryonics will keep people searching for answers.
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