How do you wire explosives in such a way that they survive being hit by 737s and burned for an hour

I don't know, the article does a better job than I do. You can debate this with people who know more on the subject. Many explosives are designed to withstand physical impacts, as far as I know.

placed at the exact floors that 737s would hit

They werent placed exactly there, the whole building or at least key sections were wired

and why would it even be necessary over the spectacle of having 737s crash in the first place?

Shock and awe, create confusion as to how to investigate the details. Otherwise you wpuld also have no pretext for TSA, less for the Patriot Act too

If your goal is destruction of the buildings

The goal is to 1) psyop the American people into endless wars against muslims (but actually for Israel) 2) psyop them into supporting the patriot act, etc. 3) Make sure Silverstein gets his insurance payout so he goes along with the plan

I encourage you to order a subpeona of Bush, Cheney, Silverstein, Lowy, Eisenberg, Mossad leadership (plus their "dancing israelis") and others to get the full story as to what their plan was and how it was carried out. ULtimately, the particulars of the collapse just dont matter so much because - as I've said elsewhere - You are ruled by zionist Jews and traitorous elites who conspired to do this, and that's the world you still have to live in. Exactly how/why the towers fell or what happened on the planes on 9/11 is irellevant to this fact, and focusing on minutiae is a cope to avoid dealing with the current problem.