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How to Fail
Kevin Fong
University College London Hospital
@kevin_fong
Part 1
Failure and Complexity
Thomas Thwaites – The Toaster Project
Failure Modes
Failure Modes
Fail Safe
Fail Deadly
Fail Operational
Fail Safe
Fail Deadly
Fail Deadly
Fail Operational
Fail Operational
Failure Modes
Fail Safe
Fail Operational
Fail Deadly
Fail Badly
Is there a better failure mode?
Part 2
The Mythology of Failure
“ In the face of overwhelming
odds I am left with only one
option …
“ In the face of overwhelming
odds I am left with only one
option …
I’m gonna have to science the
shit out of this ”
Competence Porn
The High Performing Psychopath
SERE course for US Special Operations Soldiers
Part 3
How to Fail
Reliability is more important than Performance
Reliability is more important than Performance
Graceful Failure
“ Graceful degradation is the
ability of a system to maintain
most, if not all, of its function in
the face of failure ”
“I think health care is more
about love than about most
other things. If there isn't at
the core of this two human
beings who have agreed to be
in a relationship where one is
trying to help relieve the
suffering of another, which is
love, you can't get to the right
answer here.”
“I think health care is more
about love than about most
other things. If there isn't at
the core of this two human
beings who have agreed to be
in a relationship where one is
trying to help relieve the
suffering of another, which is
love, you can't get to the right
answer here.”
Don Berwick
Institute for Health Improvement
“ Forgiveness is me giving up
my right to hurt you for hurting me.
Forgiveness is the final act of love ”
“ Forgiveness is me giving up
my right to hurt you for hurting me.
Forgiveness is the final act of love ”
Beyonce Knowles
Singer, Philosopher
“ Forgiveness is the final form of love ”
Reinhold Niebuhr
Theologian, Ethicist
How to Fail
Kevin Fong
University College London Hospital
@kevin_fong

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Medical Error - Learning from mistakes: Kevin Fong

Editor's Notes

  1. Thomas Thwaites
  2. £1187.24p in materials. C.f. £24 for one that works and doesn’t kill you.
  3. http://www.cpushack.com/space-craft-cpu.html Curiosity rover uses a RAD6000 with a 25MHz maximum clock speed. Shake and bake procedures – which mean that the 486 processors that ran space shuttle weren’t the same ones in your desktop https://www.geek.com/news/hubbles-cpu-is-not-your-fathers-486-1371049/ BAE RAD6000 (25MHz Max): This is a radiation hardened version of the IBM RS/6000 Processor (RSC). Cost is around $200,000-$300,000 https://history.nasa.gov/computers/Ch4-3.html
  4. NASA’s GPC for the space shuttle. Radiation hardened, multi-redundant, 5 processors. https://www.nasa.gov/mission_pages/shuttle/flyout/flyfeature_shuttlecomputers.html “reliability means more than performance” “which is the same as saying the worst doctor on the worst day and still do the job.” A software change typically goes through about nine months of in-house simulator testing and then another six months of testing in a unique NASA lab before it is accepted for flight. The results of the strenuous testing regimen? Well, it has been 24 years since the last time a software problem required an on-orbit fix during a mission. In the last 12 years, only three software errors have appeared during a flight. But perhaps the most meaningful statistic is that a software error has never endangered the crew, shuttle or a mission's success.
  5. Language about “never events”
  6. Charles Morgan slide from Seal SERE course. Search, Evasion, Resistance and Escape school
  7. You work in a world where reliability is more important than performance. It is the reproducibility of the system that allows you to make a difference. It is the difference between eilte arts performance and olympic sports people and a medical intervention that can save lives. It is why our multi-centre, multi-country, multi-year trials invearbily yield negative results – because they are generally about surrogate markers of elite performance than they are about an intervention that can be reliably delivered. NASA’s GPC for the space shuttle. Radiation hardened, multi-redundant, 5 processors. https://www.nasa.gov/mission_pages/shuttle/flyout/flyfeature_shuttlecomputers.html “reliability means more than performance” “which is the same as saying the worst doctor on the worst day and still do the job.” A software change typically goes through about nine months of in-house simulator testing and then another six months of testing in a unique NASA lab before it is accepted for flight. The results of the strenuous testing regimen? Well, it has been 24 years since the last time a software problem required an on-orbit fix during a mission. In the last 12 years, only three software errors have appeared during a flight. But perhaps the most meaningful statistic is that a software error has never endangered the crew, shuttle or a mission's success.
  8. In a complex world, reliability is more important than performance. The more complex the system the harder you have to work to engineer reliability and the more inevitable failure becomes. £1187.24p in materials. C.f. £24 for one that works and doesn’t kill you.
  9. 1628
  10. Capuccini – case daily mail
  11. https://en.wikipedia.org/wiki/Reinhold_Niebuhr