as with all evolution, there is a lot of assumptions and speculation because it cannot be known for sure. The events being studied occurred in the past and its not like we can go back there to verify it. No one knows the rates at which mutations occur or the order and magnitude of them...yet the assumed conclusion that evolutionists make is simply that they evolved
But we
can go "back into the past" and verify it. For example, we understand that every year in flood plains a new layer of sediment is laid down. We can observe this occurring, right now, today. We can bore down into the sedimentary layers and literally
count the years since each layer was deposited. When we find the remains of animals within a specific layer, we can make a very accurate assessment (i.e to the very year) of the age of those remains.
That is only one single example. I'm sure you've watched the odd crime drama in your life - certain conclusions can be drawn by evidence such as blood clotting, the appearance of rigor mortis, footprints, the angle and depth of the mortal wound, the presence of spores from this or that plant, etc. Evolution is no different: all a biologist's assertions are based entirely on the evidence in front of her, or else she is not doing her job.
Also, we can and do research the rates at which mutations occur, so that is a non-starter.
Yes, we make assumptions. But what distinguishes the assumptions of normal people from the assumptions of creationists is that our assumptions are
evidence-based. IOW, we can explain exactly how we have reached our conclusions using
nothing but empirical evidence. A creationist can not do so. All creationist assertions rely entirely on faith-based religious claims.
and the same goes for anyone who claims that the eyeball evolved...without all the facts of how such changes could have occurred, or how such complex organs could develop, they would need a lot more then the assumptions they work with
We are not lacking in the facts about how such changes have occurred, or how such complex organs could develop: evolution is that fact, and that explanation.
that my have been a mistype by me... he's talking about 'random mutations' in this chapter
OK, but he is still a charlatan, a madman or a fool if he hopes to argue that the exact probability of the evolution of an eyeball can be calculated.