That would be an acceptable topic of conversation.Whose definition of "research" do we use?
That would be an acceptable topic of conversation.Whose definition of "research" do we use?
This is disingenuous… Fires in offices don't stick around in the same spot for 2 to 3 hours, they consume the fuel there and move on. The northeast corner of WTC 7, where the initial failure supposedly occurred, was not a blazing inferno for 7 hours straight.It's why no structural engineer will certify even a fire-proofed a steel structure for any fire of any duration - ratings are typucally for 2 or 3 hours. Not 7. Today, every day, somewhere some steel-frame structure is being destroyed by a fire much shorter and less severe than the HUGE infernos that swept through a dozen of acres of office space, with no sprinkler water, no firefighting at all.
..when you say:It's why no structural engineer will certify even a fire-proofed a steel structure for any fire of any duration - ratings are typucally for 2 or 3 hours. Not 7. Today, every day, somewhere some steel-frame structure is being destroyed by a fire much shorter and less severe than the HUGE infernos that swept through a dozen of acres of office space, with no sprinkler water, no firefighting at all.
And once more engage in generalised evasions with this:This is disingenuous…
IF you want to claim WTC7 was "CDed" say so and support your claim with arguments that specifically relate to WTC7 - the subject of your claim. AND - remember - specific WTC7 debate is ONLY valid as examples of response to the topic of the thread. The topic is a meta-process debate about gaining "respect" NOT arguing the details of specific or generalised building collapses.Fires in offices don't stick around in the same spot for 2 to 3 hours, they consume the fuel there and move on. The northeast corner of WTC 7, where the initial failure supposedly occurred, was not a blazing inferno for 7 hours straight.
So it is wrong for @Oystein to make generalised points in explanation even tho is is all that you do?? Double standards?Also about your claim that fires destroy steel structures daily… Maybe some structures, but not tall buildings. WTC 7 was the first tall building in history to collapse from fire, and the only one for 16 years straight until the Plasco. And you know this, so that's why you talk generically about "structures", and not specifically tall buildings.
Utter hogwash. YOU are, off topic, claiming there was CD at WTC7 - your claim - your burden of proof.I don't know, it feels like in these conversations you're just trying really hard to convince people, even if you have to resort to half truths to do it. This adds to my feeling of being gaslit, you wouldn't have argue like this if you actually had a convincing case to make.
I don't agree it's just a "generalised" point... It's more like changing the topic. If you had a strong argument about tall, steel-framed buildings collapsing from fires, here's what you would say: "You've been misinformed by truthers about the susceptibility of tall buildings to fire, Henkka! Here is a comprehensive list of all tall buildings that have collapsed from fire, and an explanation of what sometimes causes this."So it is wrong for @Oystein to make generalised points in explanation even tho is is all that you do?? Double standards?
You could earn some respect from me here by listing other cases where tall steel skyscrapers were rammed by similar jet aircraft, fully loaded with fuel, leading to uncontrolled fires, where the structure did not collapse -- or by acknowledging that it is only happened twice, at WTC 1 and 2, and that collapses followed in 100% of the cases.But you can't say that, because it's such an extraordinarily rare event that there's only one example that didn't occur on 9/11!
Here is a comprehensive list of all tall buildings that have collapsed from fire, and an explanation of what sometimes causes this."
hoping that the audience is ignorant of examples like One meridian, First Interstate Bank, or the Cardington fire experiment.
You really think it's a good idea to put an emphasis on airplane impact and jet fuel when debating the events of 9/11? You don't see the blindingly obvious, WTC 7-shaped hole you're digging for yourself there?You could earn some respect from me here by listing other cases where tall steel skyscrapers were rammed by similar jet aircraft, fully loaded with fuel, leading to uncontrolled fires, where the structure did not collapse -- or by acknowledging that it is only happened twice, at WTC 1 and 2, and that collapses followed in 100% of the cases.
If you wish to gain respect you should avoid repetitive arguments.You really think it's a good idea to put an emphasis on airplane impact and jet fuel when debating the events of 9/11? You don't see the blindingly obvious, WTC 7-shaped hole you're digging for yourself there?
This chapter focuses on one of the common fallacies in Western philosophy called 'argument by repetition' (ABR). ABR controls the script by repeating the script, and it often distracts audiences in the process. Truthiness is a key to how ABR is a pervasive propaganda technique.
You can't just hand-wave away two huge jetliners with full tanks of fuel, witnessed by thousands. Those are verifiable facts that an honest investigator simply cannot ignore, no matter how much idle speculation and unbelievable coincidence is piled on top. Yes, dammit, we think it's ALWAYS a good idea to emphasize the known facts! Why don't you?You really think it's a good idea to put an emphasis on airplane impact and jet fuel when debating the events of 9/11? You don't see the blindingly obvious, WTC 7-shaped hole you're digging for yourself there?
Wait, you want to discuss 9/11 without putting any emphasis on the planes that rammed the buildings which led to the destruction? You are squandering the offered opportunity to earn a bit of respect from me.You really think it's a good idea to put an emphasis on airplane impact and jet fuel when debating the events of 9/11?
There's no hole being dug by being truthful about what happened to the towers. Fact-finding shouldn't be reduced by any serious person to be a silly game of "gotcha". The towers can and should be discussed on the merits of what actually happened to them, which was large planes flying into them at high speed followed by large fires. And then WTC7 can and should be discussed on the merits too--as it has been countless times on these forums. Why on earth would we discuss them otherwise?You really think it's a good idea to put an emphasis on airplane impact and jet fuel when debating the events of 9/11? You don't see the blindingly obvious, WTC 7-shaped hole you're digging for yourself there?
And attempt to present valid arguments. NOT repetitive evasions, false analogies, irrelevant bad analogies and similar debating trickery.So basically, all any truther needs to do to get my respect is follow the rules, respect this space, and use research that's outside of the truther sphere. They don't have to be perfect at any of this; even showing a bit of effort to do so will earn my respect.
AND there are multiple clear explanations as to why those specific buildings collapsed >> which explanations he does not attempt to falsify.You could earn some respect from me here by listing other cases where tall steel skyscrapers were rammed by similar jet aircraft, fully loaded with fuel, leading to uncontrolled fires, where the structure did not collapse -- or by acknowledging that it is only happened twice, at WTC 1 and 2, and that collapses followed in 100% of the cases.
Point #1 - Please recognise @Henkka, that airplane impact was a feature of both Twin Towers collapses. It was not a (direct) feature of WTC7 collapse. The implied false analogy is YOUR strawman. No one here as far as I am aware has claimed that aircraft impact and jet fuel were causal factors in the WTC7 collapse. IF anyone ever did make that claim it should be soundly rejected.You really think it's a good idea to put an emphasis on airplane impact and jet fuel when debating the events of 9/11? You don't see the blindingly obvious, WTC 7-shaped hole you're digging for yourself there?
That is a great answer, not just for 9/11 "Truthers" but for anyone posting here!Here's a bulleted list, in no particular order and directed at no particular user.
Well no, I just mean you probably don't to hang your hat on plane impacts and jet fuel, since the events of that day include a third building collapsing without either of those things. And I was talking about WTC 7 in the post you quoted, so I'm not sure why you brought up the planes anyway.Wait, you want to discuss 9/11 without putting any emphasis on the planes that rammed the buildings which led to the destruction?
This is rich! This is extremely disingenuous! This is a prime example of why you deserve no respect whatsoever for your utter lack of research:This is disingenuous… Fires in offices don't stick around in the same spot for 2 to 3 hours, they consume the fuel there and move on. The northeast corner of WTC 7, where the initial failure supposedly occurred, was not a blazing inferno for 7 hours straight.
Also about your claim that fires destroy steel structures daily… Maybe some structures, but not tall buildings. WTC 7 was the first tall building in history to collapse from fire, and the only one for 16 years straight until the Plasco. And you know this, so that's why you talk generically about "structures", and not specifically tall buildings.
I don't know, it feels like in these conversations you're just trying really hard to convince people, even if you have to resort to half truths to do it. This adds to my feeling of being gaslit, you wouldn't have argue like this if you actually had a convincing case to make.
NIST: Factors contributing to WTC 7's collapse included: the thermal expansion of building elements such as floor beams and girders, which occurred at temperatures hundreds of degrees below those typically considered in current practice for fire-resistance ratings; significant magnification of thermal expansion effects due to the long-span floors in the building; connections between structural elements that were designed to resist the vertical forces of gravity, not the thermally induced horizontal or lateral loads; and an overall structural system not designed to prevent fire-induced progressive collapse.
"two cents" undervalues the advice by several orders of magnitude.Here's my two cents to add to @econ41's point. I'd love you to respond to exactly what it propounds rather than ignoring it or repeating your initial claims like a parrot:
I will go further. There is no place for probability-based false analogies when the details of a specific event are being discussed. And there is more than sufficient evidence to support the hypotheses being presented.You're basically abusing Bayesian logic of priors strengthening probability to suit a particular (truther) narrative. Yes, Bayes' theorem is a useful tool and a premise for many helpful probability distributions. However, its limitations are also well-known. For events without any priors or sufficient amount of priors, Bayes' theorem is a terrible predictor and generator of helpful probabilities.
Agreed.This can be said without even broaching the theme of causal analysis of each specific event (rather than their statistical probability derived from prior comparable events) as the most important content of a valid scientific hypothesis.
And the specific details are known for each of those two examples. And the details for One Meridian Plaza are of zero relevance to WTC 7 where different details applied. And vice versa - tho' I don't recall anyone claiming One Meridian Plaza should have collapsed because WTC 7 did.Such as Philadelphia's One Meridian Plaza (a 38-story skyscraper that burned for 18 hours in 1991) having a sturdier structural design and the WTC 7 having the following structural peculiarities that led to a fire-induced initiation of a collapse:
And vice versa - tho' I don't recall anyone claiming One Meridian Plaza should have collapsed because WTC 7 did.
Yes I am using Bayesian probability, I would object to you saying I'm abusing it heh. But really, there isn't a sufficient amount of priors for... fires in tall buildings? Really? How many would there have to be? How do you determine that number? And mind you I'm talking about WTC 7, so let's not bring up that we don't have priors of airliners striking skyscrapers here.You're basically abusing Bayesian logic of priors strengthening probability to suit a particular (truther) narrative. Yes, Bayes' theorem is a useful tool and a premise for many helpful probability distributions. However, its limitations are also well-known. For events without any priors or sufficient amount of priors, Bayes' theorem is a terrible predictor and generator of helpful probabilities.
OK, fair enough, can you list other examples of tall building on fire and struck, not by planes, but by debris from massively tall buildings that stood next door and collapsed? Or are there no other such examples? If the latter, do you then acknowledge that in the universe of fueled jet liners striking buildings and resulting in massive fire, 100% of such buildings have collapsed, and similarly in the case of a building subjected to massive fires and struck by massive debris from the collapse of an adjacent building, 100% collapsed?And mind you I'm talking about WTC 7, so let's not bring up that we don't have priors of airliners striking skyscrapers here.
Sure. The problem with this is that NIST says the building collapsed due to the fires, not the damage from debris. This makes sense as the collapse started in the northeast corner of the building, so basically the opposite side of where the debris hit.OK, fair enough, can you list other examples of tall building on fire and struck, not by planes, but by debris from massively tall buildings that stood next door and collapsed? Or are there no other such examples? If the latter, do you then acknowledge that in the universe of fueled jet liners striking buildings and resulting in massive fire, 100% of such buildings have collapsed, and similarly in the case of a building subjected to massive fires and struck by massive debris from the collapse of an adjacent building, 100% collapsed?
Note I am not asking you to abandon your CD hypothesis (not at the moment, anyway! ^_^), just for a respect-earning acknowledgement of relevant facts.
https://www.nist.gov/world-trade-center-investigation/study-faqs/wtc-7-investigation16. Did debris from the collapse of WTC 1 cause damage to WTC 7's structure in a way that contributed to the building's collapse?
The debris from WTC 1 caused structural damage to the southwest region of WTC 7—severing seven exterior columns—but this structural damage did not initiate the collapse. The fires initiated by the debris, rather than the structural damage that resulted from the impacts, initiated the building's collapse after the fires grew and spread to the northeast region after several hours. The debris impact caused no damage to the spray-applied fire-resistive material that was applied to the steel columns, girders and beams except in the immediate vicinity of the severed columns. The debris impact damage did play a secondary role in the last stages of the collapse sequence, where the exterior façade buckled at the lower floors where the impact damage was located. A separate analysis showed that even without the structural damage due to debris impact, WTC 7 would have collapsed in fires similar to those that occurred on Sept. 11, 2001. None of the large pieces of debris from WTC 2 hit WTC 7 because of the large distance between the two buildings.
see that is why I don't respect you any moreThen thirdly, what is the probability that such an unprecedented event could be predicted many hours ahead of time? You would think that since in September 2001 we had literally zero priors of tall buildings collapsing from fire alone (Not counting buildings hit by planes here), nobody could have foreseen that WTC 7 would be the first one in history. You would think that with the prior experience from cases like One Meridian, fire experts on the scene would predict the building will probably stand just fine, regardless of how badly it burned. But instead, the impending collapse was announced with absolute certainty as early as noon to 1PM.
A tall building without working sprinklers and receiving no firefighting efforts is very improbable.1) The fire-induced total collapse of a tall building is very improbable.
How do you know?, you just said we have too few examples of a fire induced collapse.2) A fire-induced collapse looking like a controlled demolition is very improbable.
1.They predict buildings will collapse all the time (ex: One Meridian, which HAD firefighting efforts and working sprinklers above floor 30 which is what put out the fire.)3) Predicting an unprecedented event is very improbable.
is based on comparing apples to oranges. It's slight of hand tricks to confuse the viewer. Your tactics are never going to work on MB, because the guys (and me apparently) will continue to point out your slight of hand for viewers....so maybe time to move on from these false points you keep bringing up.Bayesian probability
Your use of probabilities is wrong. Whether or not you attempt to dress it up as "Bayesian".Yes I am using Bayesian probability, I would object to you saying I'm abusing it heh.
Why? It is a false and inappropriate argument. How do you expect to gain respect by once again repeating a wrong argument that you have already been informed is wrong??So let's recap our Bayesian probability here:
This sounds reasonable until you realize that we aren't just talking about any building. We are talking about a specific building under specific conditions--in particular, a building with a long span floor design (not typical), which was subjected to fires started simultaneously on multiple floors (not typical), the sprinkler systems of which were crippled (not typical), and which did not receive any active fire fighting support (not typical). When you actually research the details and refine your thinking (as NIST, Weidlinger and ARUP have all done) and thereby remove the veil of ignorance from your blind probability, you can adjust that probability accordingly and your "analysis" will fall apart at point one.So let's recap our Bayesian probability here:
1) The fire-induced total collapse of a tall building is very improbable.
A nonsense argument you've stated many times but never actually attempted to make with any rigor. If you actually go through that process, you'll find your analysis falls apart here too.2) A fire-induced collapse looking like a controlled demolition is very improbable.
As has been pointed out to you, WTC7 exhibited classic telltale signs of a pending building collapse, which those who were watching it were trained to recognize, and those who were watching it had just witnessed the two largest buildings in the city collapse from fire, so they were certainly primed to expect it to happen. Again, when you factor reality into your blind probability, your analysis falls apart.3) Predicting an unprecedented event is very improbable.
Absolute nonsense. You choose to be ignorant about the actual facts of what happened that day and pretend we cannot look at what actually happened in a rigorous way that takes those facts into account. Your approach is akin to arguing that, because only 0.0001% of the dogs in the world are chihuahuas, its basically impossible that I own a chihuahua and refusing to believe otherwise, even though I can show you my dog's DNA test. You have to realize at some level how preposterous this is. This type of thinking is the opposite of developing a reasoned argument from research.So what is the probability of all of those things occurring at once, as required by the official story? I don't know if putting a number on it is relevant, but from my point of view, it's like 0.000000001% or something.
Then instead of very sensibly stopping right there, you jump in with both feet and put a number on it anyway, and conclude thatSo what is the probability of all of those things occurring at once, as required by the official story? I don't know if putting a number on it is relevant ...
Yes I am using Bayesian probability, I would object to you saying I'm abusing it heh. But really, there isn't a sufficient amount of priors for... fires in tall buildings? Really?
So let's recap our Bayesian probability here:
1) The fire-induced total collapse of a tall building is very improbable.
2) A fire-induced collapse looking like a controlled demolition is very improbable.
3) Predicting an unprecedented event is very improbable.
So what is the probability of all of those things occurring at once, as required by the official story? I don't know if putting a number on it is relevant,
He shouldn't have even gone that far. He is already "A Bridge Too Far". Each of the 9/11 WTC tower collapses is already a past event that has happened. Whatever the facts for each example they are all certainties written in the historic record. His logic is false as soon as he tries to apply probabilities of less than 1.0 >> certainty.Then instead of very sensibly stopping right there,
Not only statisticians. Anyone with a clear understanding of logic. I won't even counter-argue his probabilities because probability-based logic has no legitimacy.you jump in with both feet and put a number on it anyway, and conclude that
"very improbable"x3 = 0.000000001%.
(Statisticians are pulling their hair out as we speak.)
Yes.@Henkka, you're in a hole. It's time to stop digging.
If you have a black swan it is black no matter how many millions of white swans there may be.In other words, even on a purely logical basis (leaving for now the factual flaws of your causal analysis on fires and building collapses to other posters on this thread), your reasoning is faulty.
Yes, it was a prediction... From the same source I linked earlier:2. This building was hit by twin debris, had a big chunk missing, had creaking and groaning sounds very early on, had no water to fight fires, etc. It wasn't a prediction, it was an educated guess derived from the afore mentioned points and the fact that they just watched the twins collapse from fire.
Chief Peter Hayden, FDNY, BBC Conspiracy Files: 9/11 – The Third Tower
Narrator: Just after midday, firefighters were watching Tower 7 nervously. The Deputy Chief of the New York Fire Department that day [Peter Hayden] remembers the scene.... "[W] e had a discussion with one particular engineer there, and we asked him, if we allowed it to burn could we anticipate a collapse, and if so, how soon? And it turned out that he was pretty much right on the money. He said, 'In its current state you have about five hours.'"
This sounds reasonable until you realize that we aren't just talking about any building. We are talking about a specific building under specific conditions--in particular, a building with a long span floor design (not typical), which was subjected to fires started simultaneously on multiple floors (not typical), the sprinkler systems of which were crippled (not typical), and which did not receive any active fire fighting support (not typical).
https://www.nist.gov/world-trade-center-investigation/study-faqs/wtc-7-investigation Question 12There were some differences between the fires in WTC 7 and those in the referenced buildings, but these differences were secondary to the fire factors that led to the collapse of WTC 7:
The differences in the fires were not meaningful for the following reasons. By the time WTC 7 collapsed, the fires in WTC 7 had advanced well beyond the likely points of origin on multiple floors (i.e., south and west faces), and points of fire origin had no bearing on the fire conditions when the building collapsed (i.e., in the northeast quadrant). Additionally, in each of the other referenced buildings, the fires burned out several floors, even with available water and firefighting activities (except for WTC 5). Thus, whether the firefighters fought the WTC 7 fires or not is not a meaningful point of dissimilarity from the other cited fires.
- Fires in high-rise buildings typically have a single point of origin on a single floor, whereas the fires in WTC 7 likely had a single point of origin on multiple (10) floors.
- Fires in other high-rise buildings were due to isolated events, whereas the fires in WTC 7 followed the collapse of WTC 1.
- Water was available to fight fires in the other high-rise buildings, but the water supply to fight fires in WTC 7 was impaired.
- While the fires in the other buildings were actively fought by firefighters to the extent possible, in WTC 7, no efforts were made to fight the fires because of the lack of a water supply.
I'm dying... There were no such things as "classic telltale signs" of a tall building collapsing from fire, as it had literally never happened before! It's like a person who has never experienced or heard of rain looking up at a dark cloud and saying, "Hmm, yes, a classic telltale sign of water falling from the sky soon..." He wouldn't know!As has been pointed out to you, WTC7 exhibited classic telltale signs of a pending building collapse
In order to gain respect follow the Posting Guidelines. You haven't. In this thread alone you have Gish Galluped, been off topic, asserted from incredulity, asserted without evidence, not provided background to provided links and others.Yes, it was a prediction... From the same source I linked earlier:
So this anonymous engineer was not only predicting that the building would collapse, but he also got the timing correct in a stunning display of foresight.
Good grief. NIST themselves say three out of your four points here were not meaningful:
https://www.nist.gov/world-trade-center-investigation/study-faqs/wtc-7-investigation Question 12
I'm dying... There were no such things as "classic telltale signs" of a tall building collapsing from fire, as it had literally never happened before! It's like a person who has never experienced or heard of rain looking up at a dark cloud and saying, "Hmm, yes, a classic telltale sign of water falling from the sky soon..." He wouldn't know!
Also, it's unfortunate that these experts of yours did not recognise these "telltale signs" in WTC 2, a building that was far more gravely damaged than WTC 7. If they had known the building was a lost cause, they could have just evacuated and many lives would have been saved. The same thing in Tehran with the Plasco tower, did those firefighters also miss these obvious, telltale signs? Is the Tehran fire department incompetent in your view? Or do buildings sometimes exhibit these obvious signs, and sometimes they just collapse without any warning? Maybe you should book a flight to Iran so you can give them a lecture about these signs.
As for the "signs" themselves, you guys keep mostly citing these supposed noises and a bulge. I guess the only thing that needs to be said about them is to ask: Can a burning building make noises, and then not collapse? Can a burning building bulge at some point, from thermal expansion or whatever, and then not collapse? If the answer to those questions is yes, and it is, then how are they signs of collapse? Like are you saying that One Meridian was dead silent and did not bulge or warp as its steel frame expanded from the heat? That only happens when burning buildings are about to collapse? Or are you saying that sure, burning buildings probably make all sorts of noises, but WTC 7 was making particularly collapse-y noises?
If you have a black swan it is black no matter how many millions of white swans there may be.
Your one black swan is certainly black.
It shows he understands the first principles at play while you will not even acknowledge them.Yes, it was a prediction... From the same source I linked earlier:
So this anonymous engineer was not only predicting that the building would collapse, but he also got the timing correct in a stunning display of foresight.
Per NIST, those three points were not meaningful dissimilarities only to four other significant reference fires, but of course they were meaningful to why WTC7 collapsed as compared to any other building. Read the NIST report, wherein the collapse model accounts for those factors in its effective calculation of the probability of collapse. Or are you claiming that your probability analysis is based only on a sample size of five (WTC7 + the four references cited by NIST)? In which case, that's fine but it just means the correct question to be asking then is "Were there differences between WTC7 and those four referenced buildings that would explain why WTC7 collapsed?" (And the answer to that is yes.)Good grief. NIST themselves say three out of your four points here were not meaningful:
https://www.nist.gov/world-trade-center-investigation/study-faqs/wtc-7-investigation Question 12
I'm dying... There were no such things as "classic telltale signs" of a tall building collapsing from fire, as it had literally never happened before! It's like a person who has never experienced or heard of rain looking up at a dark cloud and saying, "Hmm, yes, a classic telltale sign of water falling from the sky soon..." He wouldn't know!
Also, it's unfortunate that these experts of yours did not recognise these "telltale signs" in WTC 2, a building that was far more gravely damaged than WTC 7. If they had known the building was a lost cause, they could have just evacuated and many lives would have been saved. The same thing in Tehran with the Plasco tower, did those firefighters also miss these obvious, telltale signs? Is the Tehran fire department incompetent in your view? Or do buildings sometimes exhibit these obvious signs, and sometimes they just collapse without any warning? Maybe you should book a flight to Iran so you can give them a lecture about these signs.
As for the "signs" themselves, you guys keep mostly citing these supposed noises and a bulge. I guess the only thing that needs to be said about them is to ask: Can a burning building make noises, and then not collapse? Can a burning building bulge at some point, from thermal expansion or whatever, and then not collapse? If the answer to those questions is yes, and it is, then how are they signs of collapse? Like are you saying that One Meridian was dead silent and did not bulge or warp as its steel frame expanded from the heat? That only happens when burning buildings are about to collapse? Or are you saying that sure, burning buildings probably make all sorts of noises, but WTC 7 was making particularly collapse-y noises?
Yes. And then you ignore all of that and say the collapse was not predictable, putting your own incredulity (and nothing else) against the expert whom it is inconvenient for you to believe, even though he did predict the collapse.So this anonymous engineer was not only predicting that the building would collapse, but he also got the timing correct in a stunning display of foresight.
that's called an educated guess.So this anonymous engineer was not only predicting that the building would collapse, but he also got the timing correct in a stunning display of foresight.