OK, SC, several points to address here.
I'm glad you agree that judicial review is implicit in the text of the Constitution. Presumably, you would also agree that it was implicit there even before Marshall wrote Marbury (since the text didn't change in 1803). What it means to say that Marbury was a good opinion, then, is just that it brought out something that really was there in the text. I have no compunction at all judging a decision like that. I've been trained in life how to reason, and I feel capable of evaluating legal arguments. There is nothing mystical about them.
Certainly Marshall interpreted the text -- of course, others had done so before him. Both sides of the ratification debates, for example, already largely agreed on this feature of the Constitution.
Now, you say,
"AT THE VERY SAME TIME that you claim judicial review was lying dormant between the lines in the constitution (and its revelation by Marshall granted the concept a retroactive place in the constitution), you treat the current Supreme Court decisions as mere opinions adhered to 'because somebody has to decide for practical purposes, and so it's them. So we have to treat what they say as constitutional, whether or not it is.'
"So on one hand you have Marshall's opinion which is retroactively is written into the constitution and then you have this supreme court decision which might as well be written on a post it."
You're badly misinterpreting my words, sorry. I'm simply stating one simple fact, and I'm really surprised it's causing any controversy: sometimes the Supreme Court gets something wrong. (Certainly the Supreme Court believes this). When it does, its ruling has authority, but not accuracy. These are distinct concepts. How that can be difficult to grasp, I have no idea.
Let's take a simple example. Suppose that Marshall had ruled that federal courts did NOT have the power to invalidate unconstitutional laws. Then his opinion would have been controlling, because it is the Supreme Court and it has that authority; but it would have been wrong and unconstitutional.
I think that you think you're catching me in a contradiction because I accept some SCOTUS opinions and not others. Well, guess what? I accept the ones that I think were correctly reasoned (like Marbury) and reject the ones I don't (like Lochner). Of course, I still abide by the latter, if the Court hasn't yet overturned them.
To summarize once more: as we both agree, judicial review IS implicit in the text of the Constitution, and this was recognized already pre-ratification. I accept judicial review because it is in the Constitution, not because Marshall said it existed. I just happen to agree with Marshall, and applaud him for a very important decision, whose importance was to implement and stake out in reality the legal power that was already there on paper.
I applaud much less other opinions that stake out legal power that is NOT on paper.
"So if you truly from the beginning believed that you were speaking of the constitution implicitly granting the judicial branch the power to declare laws unconstitutional (which I don't think you were, you said implicit after I broached the topic), I see a lot of inconsistency which I probed with my questioning."
I always meant implicit. What else would I mean? It's not explicit in the text, but it's very clearly there implicitly in the text.
"but I hold that unless you have a deep knowledge in law,"
Well, I reject this. I wouldn't say that I have a "deep knowledge," certainly. I have some, though. I attended a pretty decent law school for three years in order to study Constitutional law, and did so; I've studied many of the Court's opinions, different perspectives on them, and a deal of its history. I've coauthored an amicus brief for a Supreme Court case. None of this, in my opinion, adds up to a "deep understanding" of the law. But you have to start somewhere, right? Somewhere between being a hack and having a deep understanding, you'd better start reasoning for yourself about the Court's opinions, and for reasons other than policy. How else would you ever get to where you could actually reason deeply?
In any case, I completely reject your elitism. As I already said, there is nothing mystical about legal reasoning. There are a lot of principles to keep in mind when reading or thinking about law, but none of them is impossible for an intelligent adult to understand. The Supreme Court writes its opinions for a reason, and it's not just for other lawyers: they are partially for citizens so that they can read and understand and evaluate. I have personally heard a Supreme Court justice say that, too, but then, perhaps you would know better why it is he writes things.