the science obviously goes against 9/11 truth in all areas and completely proves that it was not a controlled demolition.
Correct. not only does science go against it, but common sense also does.
however, there is still that 1 in a 10^trillion*10^trillion*10^trillion or whatever magnificently large number chance that it was controlled demo however a bunch of random calculations came out perfect on that day to eliminate all evidence of controlled demo.
Well, yes. Just like that there is some infinitessimally slight chance that pigs might fly.
So it has already been proven that 9/11 cannot be proven to be an inside job with science.
Well, you cannot prove a negative, so the the correct wording would be that science has provided no support what so ever for an inside job.
So is there any other way to prove that 9/11 is an inside job or are twoofers like me screwed?
Yes you are

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i guess the ONLY way would be if 10 or 15 people actually went public and said "I helped rig the buildings for demolition". If that happened, and if those people were actually special ops demolition crew members, would you say that proves it? or would that not be enough evidence?
In other words, could new evidence change the picture? Yes, new evidence could presumably change the picture. However, with all the evidence against, we have to say that in inside job is a rather extraordinary claim, so it will require rather extraordinary evidence.
So would confessions change the picture? Well, if George W Bush came out and confessed he had masterminded 911, that would certainly be food for thought.
But some unknown guy confessing he plated explosives? Not right away. You know, I shouldn't be surprised if somebody already did that. Do you know that in nearly all high-profile crimes, there are people showing up at police stations, "confessing"? The police always keep some details out of the media, so they can disclose these false confessions. It is a sort of mental disease.
A team of bona fide pro demolition agents coming clean and confessing having rigged the WTC? Well, that would certaily get some very awkward questions asked.
So, yes, that might do the job. But,
please, please, don't hold your breath. Your health could be at risk.
You know, if it walks like a duck, quacks like a duck, looks like a duck, smells like a duck, and tastes like a duck, perhaps it's time to reconsider your opinion that it is not a duck.
Hans