- May 28, 2002
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Man, evos is an ugly world. Anyhow:
Imagine that there is a sequence of DNA in a particular animal that makes the eyes of that animal blue.
Let us call it, 'atcgatatcg' - it does not matter.
Suppose that due to random mutation and natural selection, this species of animal lost this sequence.
Has information been lost?
Why or why not?
Suppose that a few hundred dozen generations later, random mutations bring this sequence back into existence in the right place for one member of that species. Its eyes are blue - the only member of its species to have blue eyes at that point in time.
Has information been gained?
Why or why not?
Imagine that there is a sequence of DNA in a particular animal that makes the eyes of that animal blue.
Let us call it, 'atcgatatcg' - it does not matter.
Suppose that due to random mutation and natural selection, this species of animal lost this sequence.
Has information been lost?
Why or why not?
Suppose that a few hundred dozen generations later, random mutations bring this sequence back into existence in the right place for one member of that species. Its eyes are blue - the only member of its species to have blue eyes at that point in time.
Has information been gained?
Why or why not?