Archive for agosto 15th, 2013

Co-option ou cooption: Uma hipotese Darwinista que preciso conhecer

quinta-feira, agosto 15th, 2013
Tema obtido em:
Dr. Plop

Half a gearing system would never work, so any piecemeal ‘evolution’ in that direction would be of no benefit to the organism, and ceteris paribus probably a hindrance, to be selected out.
Systems are only of actual benefit when they are complete and functional. Biology contains millions of different complete, functional, organic and behavioural systems, and zero ‘evolving’ on-the-way-to-being-complete systems.
If Darwinism were true one would expect many thousands of the latter to be observed.
The truth is that Darwinism requires an enormous amount of faith (plus society-wide indoctrination) to subsist. The irony is that those who most believe in it are the kind of people most likely to scorn faith.

Marsinah Jawa  Dr. Plop

This is a standard argument used by anti-evolutionists. It’s based on a false premise. That characteristics need to fulfill the same function from beginning to end. That’s a mistake. What happens is that existing organs are co-opted for a different purpose

Dr. Plop  Marsinah Jawa

You are still faced with the same problem. The co-option hypothesis tacitly requires the pre-existence of the very phenomenon whose origin it seeks to explain: – a complete and functionally interdependent system – (of proteins) which could ‘co-opt’ a particular system’s previous function.

It would be the biological equivalent of a hardware reconfiguration and a firmware update. Half a reconfiguration and update aren’t of any use.

To believe that such a thing is not only possible but enormously widespread shows a great deal of faith IMO.
I also fail to see how the co-option hypothesis is truly falsifiable; thus making it more of a background belief than a scientific proposition. One could always carry on believing it if one was determined to. Just like the rest of Darwinism and other ideologies.

Marsinah Jawa  Dr. Plop

An engineer designing gears for use by an organism like this would surely create gears that worked in both directions, to allow forwards or backwards movements, like in a car.
These gears only allow forwards movement. You could make the case that it’s a good example of precisely what you scoffed at – half a gear system