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Author Topic:   Can we accelerate evolution?
Junior Member (Idle past 4566 days)
Posts: 17
Joined: 08-25-2011

Message 76 of 77 (630448)
08-25-2011 10:37 AM
Reply to: Message 75 by Dr Adequate
08-25-2011 5:29 AM

My thought is that selection and evolution will continue even with extensive genetic engineering. The new humans with either be well suited to their environment or they won't. We humans who make mistakes will create new humans that we think are so much better, but chances are that there will be unintended consequences. Perhaps the gene that makes people so beautiful will increase cancer; ;perhaps the gene that makes people so kind will take away their ambition, etc, etc.
Selection will occur on the group level too. Perhaps the new race of supermen that we create will simply not have a desire for children. That would doom them for sure.
There are MANY selection pressure in this world and a little tinkering will not make them go away. The US and the world have had a nice run of wealth so that the agents of selection have appeared to diminish, but they are stll very much there. Ask yourself this, are some people more likely to die in a war? Are some more likely to survive. As just one small example, war will always be with us so that selection is still very active. In a similar way, do some people have an easier time getting married than others? Again, a method of selection that is still very active.

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Junior Member (Idle past 4566 days)
Posts: 17
Joined: 08-25-2011

Message 77 of 77 (630450)
08-25-2011 10:47 AM
Reply to: Message 74 by Huntard
08-25-2011 3:51 AM

What you are describing is a genetic bottleneck. We most definitely want to avoid one, but the world has seen many of them over the eons and they are a major force that drives speciation. I would argue (as would many) that this is why we need to get off the earth and out into space, because it is the best way to ensure the survival of humanity.
The fear of insufficient genetic variability is so widespread, that I hope we will make efforts in the future to ensure that it does not happen. I would also expect that in the future we will be able to "print out" genes and organism from stored information so that if a gene disappears, you will just call up the file from the library and hit the print button on your "Mr. GeneBuilder"
{The following message was spam and was deleted - Adminnemooseus}
Edited by Adminnemooseus, : No reason given.

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