Evolution Disproven

[xianghua]

Given your track record probably more chicken chess, but give it a shot, give your best effort.

ok. so the first step in eye evolution is suppose to be an eyespot. the problem is that even an eyespot is very complex and contain several parts. so even the first step in eye evolution cant be done by evolution.

a second problem is the fact that a vision system is a clear example of design. thus even if it can evolve stepwise it cant happen without a design that put a code for a vision system in the first place. i can bring you more problems but lets start with those above.

 

[Speedwell]

ok. so the first step in eye evolution is suppose to be an eyespot. the problem is that even an eyespot is very complex and contain several parts. so even the first step in eye evolution cant be done by evolution.

a second problem is the fact that a vision system is a clear example of design. thus even if it can evolve stepwise it cant happen without a design that put a code for a vision system in the first place. i can bring you more problems but lets start with those above.

Neither of those are "problems" for evolution.
1. Co-evolution of related parts in a complex system is not a problem for evolution.
2. Evolution is purely contingent and has no long-term targets as you seem to imagine.

 

[Warden_of_the_Storm]

ok. so the first step in eye evolution is suppose to be an eyespot. the problem is that even an eyespot is very complex and contain several parts. so even the first step in eye evolution cant be done by evolution.

You've already hit a problem for yourself. Why does the eyespot have to be complex?

 

[Gene2memE]

ok. so the first step in eye evolution is suppose to be an eyespot.

Nope. There are a couple of stages preceding this. I suspect you'd know this, if you were familiar with anything more than a cartoon caricature of evolutionary biology. I'd suggest you research 'non-image-forming photoreception'

the problem is that even an eyespot is very complex and contain several parts.

The most basic eyespots, that we know of, consist of two "parts" (a photoreceptor cell and a pigment cell). Neither of these are novel on their own, as their produced by modified opsin proteins, which genetic evidence suggests was present among creatures at least 1.5 billion years ago.

so even the first step in eye evolution cant be done by evolution.

That's an absolutist claim, and the onus is on you to substantiate it.

a second problem is the fact that a vision system is a clear example of design.

Clear to you. But strangely not to biologists.

thus even if it can evolve stepwise it cant happen without a design that put a code for a vision system in the first place. i can bring you more problems but lets start with those above.

Here's a puzzler for you then: There are creatures that are responsive to light yet don't have eyes. How do they do it?

 

[xianghua]

The most basic eyespots, that we know of, consist of two "parts" (a photoreceptor cell and a pigment cell). Neither of these are novel on their own, as their produced by modified opsin proteins, which genetic evidence suggests was present among creatures at least 1.5 billion years ago.

ok. so the first step is a protein that can detect light and do something with it. right? so say that we are talking about 2 parts: the part that can detect light and the part that can use it for the organism. we are talking about 2 protein sites. a tipical minimal site may need about 50-100 amino acids. so we are talking about 100-200 amino acids as the first step. before we will continue, do you agree with that notion?

Clear to you. But strangely not to biologists.

dont you think that an eye is basically a kind of organic camera that can produce an image?

(image from Camera vs. the Human Eye)

 

[Subduction Zone]

ok. so the first step is a protein that can detect light and do something with it. right? so say that we are talking about 2 parts: the part that can detect light and the part that can use it for the organism. we are talking about 2 protein sites. a tipical minimal site may need about 50-100 amino acids. so we are talking about 100-200 amino acids as the first step. before we will continue, do you agree with that notion?



dont you think that an eye is basically a kind of organic camera that can produce an image?

(image from Camera vs. the Human Eye)

You do not seem to realize that any proteins have more than one possible function. Evolution on the cellular level works quite often by the repurposing of an already existing protein or chemical.