R
Rock_Happy
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I think that Amdahl’s law “proved” mathematically that parallelism was bounded by the inherently linear nature of any problem. However, it became apparent which the human brain which solves very complex problems operates at extremely slow speed compared to a computer, and therefore must me massively parallel. Even if the theory is correct, it is meaningless in practical terms.Actually, a pair of physicists have discovered what is apparently the universal speed limit for computers. They claim this limit is as unbreakable as the speed of light. In other words, it is a law of physics. See here: blogs.physicstoday.org/newspicks/2009/10/the-ultimate-speed-limit-for-c.html
From the article:
“‘No system can overcome that limit. It doesn’t depend on the physical nature of the system or how it’s implemented, what algorithm you use for computation … any choice of hardware and software,’ Levitin said. ‘This bound poses an absolute law of nature, just like the speed of light.’”
While I am sure there might be “short cuts” like there are for FTL travel, they’re probably prohibitively energy intensive and unlikely to occur for thousands of years. And it would only be a short cut, not actually breaking the limit. While computers can do amazing things, their potential is not one of omnipotency.
I have heard about cognitive changes occurring as a result of computers, especially in younger people. I doubt these changes are as significant as some try to claim. We’re still homo sapiens with roughly the same ability and skills before. Naturally, we will change somewhat as time passes. Something important to remember here, especially when discussing “guided evolution” is whether or not these kinds of changes can be passed onto one’s descendants. The minor cognitive changes that have resulted from the use of computers probably isn’t the result of a mutation that can pass onto progeny. Sort of a temporary change, don’t you think?
The issue of biological engineering is another issue. It is another area of promise, though again it probably has its limits. There is, after all, only so much that biological matter can do. Probably the most interesting changes coming in the 21st century will be partial merger of man and machine. There are obvious moral and ethical issues attached to that. Something like that is way above my pay grade.
I’m not as concerned. These changes are coming, to be sure, but they’re not going to appear overnight. We’ll meet the challenges as they come and remember the promise made to us by God, that we will not fail. We’ve survived intense, brutal persecutions and attempt to eradicate the Church. The advent of man-machine humans probably won’t overwhelm us.
My problem with the reductionist approach is that some people, including researchers, confuse reductionist methodology with some kind of ontological reductionism. Even if a future neuroscience can completely explain consciousness, it doesn’t justify the “nothing-buttery” argument.