Do you now agree that there is no knowledge in science, or is a justification forthcoming?
I only agree that there is no knowledge in science if you want to use some definition of knowledge that makes it impossible. Like I've said, or think I somewhere in this thread, I haven't come across a system of thought that doesn't have some premise that isn't supported or some apparent contradiction or difficulty in it somewhere. But that doesn't mean I think we should reject every system of thought, but we should try to understand what each system is good for and it's strengths and weaknesses.
So, you want a defense of scientific knowledge, so here goes. If there is no knowledge in science, how can scientists fire a rocket from the earth and have it deliver a satellite into geosynchronous orbit? Of course, this is just one of zillions of possible such questions I could ask. Didn't I ask some before?
Why are you asking me this? Oh, I didn't answer some of your points. That was not meant as a concession of scientific knowledge.
No scientific claim can be verified by using science, because to do so
would be to beg the question.
I don't see that at all. If you want to say that science in general cannot be justified by science. Fine, who cares? It is justified by it's success.
Also, science and all empirical laws and theories rely on induction, which commits deductive fallacies.
.
I'd like to see you get anywhere with any system of thought that has no
empirical premises and uses no inductive reasoning
It is always scientifically possible for a theory, or even a law to be replaced by a different one, and therefore no theory or scientific law can be justified.
Actually new laws rarely if ever overturn older ones, they usually are just more generally true. The old laws are still true to the narrower frame of reference they
were applied to. Theories, on the other hand are not just less established laws. Theories seek to explain how and why something happens while laws simply describe what happens in certain circumstances. Not only can scientific laws be justified, but they are justified by their omnipotence. Try breaking one and see how far you get. Theories, due to their greater complexity are more difficult to justify, but can still be accepted unless falsified.
Because we know that we can not justify any scientific claim, we can not know if the claim is true or not, and therefore we know that there is no knowledge in science.
No, I disagree. Scientific claims are justified by being falsifiable, yet after extensive testing never having been falsified. OK, sure you can apply some absolutist standard and say that it cannot be proven inductively that the situation will not change. Fine I've admitted that scientific knowledge is not absolute, but it is practical and some of it is absolute in at least as far as we know. Geesh! If that's not good enough for anybody, then I question why they are so desperate to find fault with the greatest tool human reason has ever produced.
Could it be desperation to discredit some scientific theory or fact that is inconvenient to one's theology? Don't tell me you are a young earth creationist.
If you want to question whether evolution really happens just according to random mutations and natural selection, I think that is still doubtable by reasonable people. But to think the earth could be just seven or eight thousand years old is IMO like nearly as cooky as believing the earth is flat.