Register | Sign In


Understanding through Discussion


EvC Forum active members: 53 (9179 total)
4 online now:
Newest Member: Jorge Parker
Upcoming Birthdays: Theodoric
Post Volume: Total: 918,133 Year: 5,390/9,624 Month: 415/323 Week: 55/204 Day: 31/24 Hour: 3/5


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Diversification: Random Walk or Biological Determinism?
straightree
Member (Idle past 4860 days)
Posts: 57
From: Near Olot, Spain
Joined: 09-26-2008


Message 22 of 35 (488791)
11-17-2008 3:29 PM
Reply to: Message 21 by Fosdick
11-16-2008 7:43 PM


Re: An ab initio Reducto ad Diversito.
I expect not to stride out of subject. I find refferences to non biological evolution interesting, because they broaden the view. They may be particularly pertinent when talking about determinism and randomness. I, therefore would like to expand a little bit your refference to rocks and erosion.
quote:
Is biological diversification like erosion? If so, then it would be a random walk.
It could seem that erosion is just the destruction of rocks, but, at least in planet earth, it has been the starting point for soil building, that produced forests, and arable earth. So seen in that way, maybe it could be considered as rather deterministic.

This message is a reply to:
 Message 21 by Fosdick, posted 11-16-2008 7:43 PM Fosdick has replied

Replies to this message:
 Message 26 by Fosdick, posted 11-17-2008 7:47 PM straightree has not replied

  
straightree
Member (Idle past 4860 days)
Posts: 57
From: Near Olot, Spain
Joined: 09-26-2008


Message 34 of 35 (488988)
11-20-2008 6:00 PM
Reply to: Message 32 by New Cat's Eye
11-18-2008 12:25 PM


Randomness and predictability
quote:
So, is biological diversity random.... I guess when you boil it down, it has to have some random component from the mutations, but then the environmnet determines (in that mechanical sense) whether or not the diversity will increase.
Hy CS, yes, I thing that randomness is necessary to breed diversity, otherwise absolute determinism would only breed uniformity.
I also would like to point out, that some times, and I talk also for myself, we confuse randomness with unpredictability. A random process has a probability assigned for all the possible outcomes, be them known to us or not. Taking the typical random example of the die, the probability of having one particular number is 1/6, but, if we make a run of 6.000 tries, we will have very approximately 1.000 occurrences for each number. So the final outcome is prity much deterministic. Am I saying a barbarity?

This message is a reply to:
 Message 32 by New Cat's Eye, posted 11-18-2008 12:25 PM New Cat's Eye has not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024