Matt Oliver
@sameo416.bsky.social
Red River Métis ∞ Scotch-breed ∞ RCAF Veteran ∞ Feral theologian ∞ aerospace/electrical ∞ P.Eng. ∞ he/him ∞ lawful chaotic ∞ Disabled ∞ rrmc rmc sfu uec ∞ nd
like the faulty AOA vane in the Ethiopian Air 737 Max crash. If you call that 'root cause' what motivation is there to look at the socio-technical factors that allowed a single sensor flight-safety-critical system to be certified?
It requires looking at the entire system. From Nancy Leveson:
It requires looking at the entire system. From Nancy Leveson:
December 28, 2025 at 6:52 PM
like the faulty AOA vane in the Ethiopian Air 737 Max crash. If you call that 'root cause' what motivation is there to look at the socio-technical factors that allowed a single sensor flight-safety-critical system to be certified?
It requires looking at the entire system. From Nancy Leveson:
It requires looking at the entire system. From Nancy Leveson:
as it’s consistent in all complex systems. Exceptionally rare to see an organization accept moral culpability - quite the opposite.
Columbia’s inquiry needed to fire a block of foam at the leading edge of a shuttle wing, as the senior people at NASA refused to accept it would fail that way.
Columbia’s inquiry needed to fire a block of foam at the leading edge of a shuttle wing, as the senior people at NASA refused to accept it would fail that way.
December 28, 2025 at 7:02 AM
as it’s consistent in all complex systems. Exceptionally rare to see an organization accept moral culpability - quite the opposite.
Columbia’s inquiry needed to fire a block of foam at the leading edge of a shuttle wing, as the senior people at NASA refused to accept it would fail that way.
Columbia’s inquiry needed to fire a block of foam at the leading edge of a shuttle wing, as the senior people at NASA refused to accept it would fail that way.
point would have shifted rapidly, and the outcome could have been much different.
Avoid simple solutions or diagnoses of complex situations. This is hard as our culture loves simple lists and action plans, and particularly loves moralizing accidents (I hear this is still very much an issue
Avoid simple solutions or diagnoses of complex situations. This is hard as our culture loves simple lists and action plans, and particularly loves moralizing accidents (I hear this is still very much an issue
December 28, 2025 at 7:02 AM
point would have shifted rapidly, and the outcome could have been much different.
Avoid simple solutions or diagnoses of complex situations. This is hard as our culture loves simple lists and action plans, and particularly loves moralizing accidents (I hear this is still very much an issue
Avoid simple solutions or diagnoses of complex situations. This is hard as our culture loves simple lists and action plans, and particularly loves moralizing accidents (I hear this is still very much an issue
from a stable system, operating as designed, to one outside its design parameters. For a boiler this is catastrophic.
Rasmussen described this in terms of movement of an operating point bounded by performance/workload/economic boundaries.
It’s a useful cognitive model of complexity.
Rasmussen described this in terms of movement of an operating point bounded by performance/workload/economic boundaries.
It’s a useful cognitive model of complexity.
December 28, 2025 at 7:02 AM
from a stable system, operating as designed, to one outside its design parameters. For a boiler this is catastrophic.
Rasmussen described this in terms of movement of an operating point bounded by performance/workload/economic boundaries.
It’s a useful cognitive model of complexity.
Rasmussen described this in terms of movement of an operating point bounded by performance/workload/economic boundaries.
It’s a useful cognitive model of complexity.
A listing of other factors:
December 25, 2025 at 8:38 PM
A listing of other factors:
This is in the insured population.
December 25, 2025 at 8:38 PM
This is in the insured population.
Look at the increases in the 0-44 cohort, those expected to have the longest life expectancy.
December 25, 2025 at 8:38 PM
Look at the increases in the 0-44 cohort, those expected to have the longest life expectancy.
particularly in younger age groups. Potential contributing factors include indirect Covid effects, exacerbation of pre-pandemic trends, and healthcare resource and access issues."
This is all-cause reporting, but the conclusion suggests at least a portion is "indirect Covid effects".
This is all-cause reporting, but the conclusion suggests at least a portion is "indirect Covid effects".
December 25, 2025 at 8:38 PM
particularly in younger age groups. Potential contributing factors include indirect Covid effects, exacerbation of pre-pandemic trends, and healthcare resource and access issues."
This is all-cause reporting, but the conclusion suggests at least a portion is "indirect Covid effects".
This is all-cause reporting, but the conclusion suggests at least a portion is "indirect Covid effects".
It has been reported in Canada. The distinction between service dogs and emotional support animals in 2024 was the result partly of abuse of ESA declarations. I track this as it impacts my community of injured veterans.
Canadian Transportation Agency decision:
otc-cta.gc.ca/eng/ruling/1...
Canadian Transportation Agency decision:
otc-cta.gc.ca/eng/ruling/1...
December 3, 2025 at 2:34 AM
It has been reported in Canada. The distinction between service dogs and emotional support animals in 2024 was the result partly of abuse of ESA declarations. I track this as it impacts my community of injured veterans.
Canadian Transportation Agency decision:
otc-cta.gc.ca/eng/ruling/1...
Canadian Transportation Agency decision:
otc-cta.gc.ca/eng/ruling/1...
November 23, 2025 at 4:28 PM
Well, I wonder what could be behind this?
Photo radar was pulled early on, but radar wouldn’t deter reckless driving or poor judgement.
And there have been traffic calling measures installed in residential areas, so positive mitigations increasing.
www.cbc.ca/news/canada/...
Photo radar was pulled early on, but radar wouldn’t deter reckless driving or poor judgement.
And there have been traffic calling measures installed in residential areas, so positive mitigations increasing.
www.cbc.ca/news/canada/...
November 13, 2025 at 1:51 AM
Well, I wonder what could be behind this?
Photo radar was pulled early on, but radar wouldn’t deter reckless driving or poor judgement.
And there have been traffic calling measures installed in residential areas, so positive mitigations increasing.
www.cbc.ca/news/canada/...
Photo radar was pulled early on, but radar wouldn’t deter reckless driving or poor judgement.
And there have been traffic calling measures installed in residential areas, so positive mitigations increasing.
www.cbc.ca/news/canada/...
The M17 military variant.
November 11, 2025 at 2:50 AM
The M17 military variant.
Sig P320 my guess.
November 11, 2025 at 2:41 AM
Sig P320 my guess.
It’s not a Glock 19, the slide tapers to the top. Glocks are square.
The 5th Gen (left) is a bit different but still square.
The 5th Gen (left) is a bit different but still square.
November 11, 2025 at 2:28 AM
It’s not a Glock 19, the slide tapers to the top. Glocks are square.
The 5th Gen (left) is a bit different but still square.
The 5th Gen (left) is a bit different but still square.
But the term carries with it another appeal to authority.
As my colleague noted, one of the issues under discussion was that 'clinician scientists' have special insight into the interpretation of evidence through EBM.
This is unhelpful, and is used frequently imo to silence challengers.
As my colleague noted, one of the issues under discussion was that 'clinician scientists' have special insight into the interpretation of evidence through EBM.
This is unhelpful, and is used frequently imo to silence challengers.
October 20, 2025 at 2:56 PM
But the term carries with it another appeal to authority.
As my colleague noted, one of the issues under discussion was that 'clinician scientists' have special insight into the interpretation of evidence through EBM.
This is unhelpful, and is used frequently imo to silence challengers.
As my colleague noted, one of the issues under discussion was that 'clinician scientists' have special insight into the interpretation of evidence through EBM.
This is unhelpful, and is used frequently imo to silence challengers.
"I would not have the same confidence as you telling an engineer about their profession." Which they immediately deploy in the second attempt at an appeal to authority.
Essentially, exactly telling an engineer about their profession.
As someone who did human factors in flight test...this is wrong
Essentially, exactly telling an engineer about their profession.
As someone who did human factors in flight test...this is wrong
October 20, 2025 at 2:56 PM
"I would not have the same confidence as you telling an engineer about their profession." Which they immediately deploy in the second attempt at an appeal to authority.
Essentially, exactly telling an engineer about their profession.
As someone who did human factors in flight test...this is wrong
Essentially, exactly telling an engineer about their profession.
As someone who did human factors in flight test...this is wrong
And than the answer is only an approximation of reality.
The second is the obvious logic error. The op began by chastising an engineer for speaking about the privileged domain of the EBM 'clinician scientist'. And said (like the Pharisee did),
The second is the obvious logic error. The op began by chastising an engineer for speaking about the privileged domain of the EBM 'clinician scientist'. And said (like the Pharisee did),
October 20, 2025 at 2:56 PM
And than the answer is only an approximation of reality.
The second is the obvious logic error. The op began by chastising an engineer for speaking about the privileged domain of the EBM 'clinician scientist'. And said (like the Pharisee did),
The second is the obvious logic error. The op began by chastising an engineer for speaking about the privileged domain of the EBM 'clinician scientist'. And said (like the Pharisee did),
using traditional analytical techniques.
So when someone makes an overt appeal to authority asserting that their field is more complicated than mine, it's not hugely credible.
Why? Primarily b/c my experience is all disciplines in science engage complex systems that are unintelligible to someone
So when someone makes an overt appeal to authority asserting that their field is more complicated than mine, it's not hugely credible.
Why? Primarily b/c my experience is all disciplines in science engage complex systems that are unintelligible to someone
October 20, 2025 at 2:56 PM
using traditional analytical techniques.
So when someone makes an overt appeal to authority asserting that their field is more complicated than mine, it's not hugely credible.
Why? Primarily b/c my experience is all disciplines in science engage complex systems that are unintelligible to someone
So when someone makes an overt appeal to authority asserting that their field is more complicated than mine, it's not hugely credible.
Why? Primarily b/c my experience is all disciplines in science engage complex systems that are unintelligible to someone
I just cited, an apology? Maybe acknowledge there's some basis in knowledge for my comment?
But Settler-Colonial defaults can never, ever do that, as it's a ceding of the terrain meaning a loss of power and control.
And predictably the op doubled down with a different appeal to authority.
But Settler-Colonial defaults can never, ever do that, as it's a ceding of the terrain meaning a loss of power and control.
And predictably the op doubled down with a different appeal to authority.
October 20, 2025 at 2:56 PM
I just cited, an apology? Maybe acknowledge there's some basis in knowledge for my comment?
But Settler-Colonial defaults can never, ever do that, as it's a ceding of the terrain meaning a loss of power and control.
And predictably the op doubled down with a different appeal to authority.
But Settler-Colonial defaults can never, ever do that, as it's a ceding of the terrain meaning a loss of power and control.
And predictably the op doubled down with a different appeal to authority.
gracious medical researchers who are EBM specialists).
One of those colleagues jumped in with a response, echoing my original concerns and adding that the op had cited me earlier on.
Now, how would you respond? If I just found out I'd been attempting to minimize someone who'd written the article
One of those colleagues jumped in with a response, echoing my original concerns and adding that the op had cited me earlier on.
Now, how would you respond? If I just found out I'd been attempting to minimize someone who'd written the article
October 20, 2025 at 2:56 PM
gracious medical researchers who are EBM specialists).
One of those colleagues jumped in with a response, echoing my original concerns and adding that the op had cited me earlier on.
Now, how would you respond? If I just found out I'd been attempting to minimize someone who'd written the article
One of those colleagues jumped in with a response, echoing my original concerns and adding that the op had cited me earlier on.
Now, how would you respond? If I just found out I'd been attempting to minimize someone who'd written the article
I'll post about the talk afterwards.
The context of this interaction was a 'clinician scientist' making some assertions about evidence-based medicine. I pushed back and noted that the default presumption of expertise I've encountered in EBM is unhelpful and harmful.
I got this response.
The context of this interaction was a 'clinician scientist' making some assertions about evidence-based medicine. I pushed back and noted that the default presumption of expertise I've encountered in EBM is unhelpful and harmful.
I got this response.
October 20, 2025 at 2:56 PM
I'll post about the talk afterwards.
The context of this interaction was a 'clinician scientist' making some assertions about evidence-based medicine. I pushed back and noted that the default presumption of expertise I've encountered in EBM is unhelpful and harmful.
I got this response.
The context of this interaction was a 'clinician scientist' making some assertions about evidence-based medicine. I pushed back and noted that the default presumption of expertise I've encountered in EBM is unhelpful and harmful.
I got this response.
I had my own dalliance with Antifa.
Except we called it 416 Tactical Fighter Squadron, part of the RCAF.
Except we called it 416 Tactical Fighter Squadron, part of the RCAF.
October 19, 2025 at 6:12 PM
I had my own dalliance with Antifa.
Except we called it 416 Tactical Fighter Squadron, part of the RCAF.
Except we called it 416 Tactical Fighter Squadron, part of the RCAF.
Just updated to noon today as the expected outage end.
Losing business systems for half a work day isn't usually done for maintenance.
I'm going to ping them on Tw, there should at least be a social media update.
Losing business systems for half a work day isn't usually done for maintenance.
I'm going to ping them on Tw, there should at least be a social media update.
October 16, 2025 at 12:42 PM
Just updated to noon today as the expected outage end.
Losing business systems for half a work day isn't usually done for maintenance.
I'm going to ping them on Tw, there should at least be a social media update.
Losing business systems for half a work day isn't usually done for maintenance.
I'm going to ping them on Tw, there should at least be a social media update.
@ziadfazel.bsky.social
Just noting the APEGA website has been down for at least 12 hrs. First noted yesterday around 1700 when I got time out errors.
Now there’s a redirect page but the time is increased when each projection is hit.
Wondering if this is a IT attack?
Just noting the APEGA website has been down for at least 12 hrs. First noted yesterday around 1700 when I got time out errors.
Now there’s a redirect page but the time is increased when each projection is hit.
Wondering if this is a IT attack?
October 16, 2025 at 11:57 AM
@ziadfazel.bsky.social
Just noting the APEGA website has been down for at least 12 hrs. First noted yesterday around 1700 when I got time out errors.
Now there’s a redirect page but the time is increased when each projection is hit.
Wondering if this is a IT attack?
Just noting the APEGA website has been down for at least 12 hrs. First noted yesterday around 1700 when I got time out errors.
Now there’s a redirect page but the time is increased when each projection is hit.
Wondering if this is a IT attack?