Glenn, your points are, of course, valid. But for those that can't accept any chance of harm, I have the following solution that should be an end to our worries: The obvious solution to the problem of preventing all injury to everyone is a mandatory world-wide government problem to build individual steel-reinforced concrete protection shields for every human on the planet. Humans would report to special stations for their "protection shields" to be installed. Once installed no harm could come to the person because he/she/it would be completely enclosed within the safety device. The now safe person would never again need to fear any harm from external hazardous conditions. Once safety contained in the protective device, the protective devices could be placed in a safe location, perhaps underground, to further protect the valuable human from harm. Mankind would no longer have to live in fear of harm. Imagine, no longer will our children face permanent harm from such devastating things as automobiles, fires, child molesters, abusive parents, etc. Work with me to initiate this program immediately! Our first need is a famous and well-known personality to alert the world to the need for such important safety devices, brains aren't important -- the message is! It is important that these safety devices be offered free-of-charge to all those that feel it necessary, only when these people have been safety contained in these protective devices will the rest of us be safe... -Gary > ---------- > From: glenn@writeme.com[SMTP:glenn@writeme.com] on behalf of > Glenn Johansson[SMTP:glenn@WRITEME.COM] > Sent: Wednesday, August 13, 1997 5:20 AM > To: 'pic microcontroller discussion list' > Subject: OFF TOPIC!!! RE: Reliability thinking and risk assesment > > >Would you ever quote this formula to the parent of a child > killed in > >a plane crash - Eh ? > > How does a person in power decide how much money to set aside for > improved fire safety that could save lifes and equipment in a fire, > how much money to set aside for additional robbery prevention that > could save lifes and money in the event of a robbery, and how much > money to set aside for non-safety related things like marketing > campaigns, etc? Regardless of how much you have spent on safety you > can always buy more safety if you spend more money, so you have to put > the limit somewhere and say "in this hallway we need fire > extinguishers every 49 meters, but every 48 meters would be > unnecessary". Or do you mean that all budgets should always spend 100% > of the money on safety? What is it that you want to achieve with this > - maximum human life on earth, instead of the more common objective > maximum human happiness (in Governments and in personal life) or > maximum company profit (in company management)? Sure, an airline > company can have a crew of 200 people radio-xraying all metal > components before takeoff to minimize metal fatigue-caused plane > crashes and install airbags in all seats to minimize injuries in the > event of a crash etc. As you understand this would be possible but > incredibly expensive. Do you find this cost acceptable just because it > would probably save some lives over a long period of time? If you > don't want to keep the formula I mentioned in the back of your head, > then what is it that you as a person in power would base your > decisions on? Is it media campaigns, saying "cute kid drowned in deep > black well - now we must rebuild all wells and make them safer so it > never happens again", or a calculation (using a scientific risk > analysis concept) of which safety measures can save more lives? Maybe > you can save twice as many lifes per year with the same money, if you > instead spend it on improving safety at railway crossings, or by > implementing anti-smoke campaigns. Or maybe you will find that too > much money is already spent on all types of safety. Or too little. You > can't just close your eyes to science and say "the dead kid's parents > have such a terrible time right now, that I don't want to seem cynical > by looking at statistics, therefore I as the President will spend all > the Government's budget to rebuild all the wells in the country. I > will not do anything about railroad x-ing safety because no cute kids > have been killed in such accidents for a while now. However, I will > make it mandatory for all citizens to wear helmets at all times (even > at home) since this would have saved about 20 lives over the last two > years". > > Studies has been made, investigating how different politicians value > different lifes. In Sweden, politicians spend 30 million kronor on > measures to prevent kids from drowning in wells (split across how many > less kids died after the measures were implemented). 24 million kronor > per saved life was spent on saving lives at railroad crossings, and > 6000 kronor was the value of a life of a smoker according to how much > the Government budget spent on anti-smoke campaigns. If we compare > different countries, Porgugal valued railway crossers' lives 15 times > less valuable than Sweden did. And USA of course (as the most > hysterical safety nation) valued their lives twice as much as Sweden > did. If the politicans acted on risk management analysis rather than > being dependant on things that the voters understand (such as avoiding > divorces and sex scandals), many more lives would have been saved on a > more even budget of the same size. > > >How do you quantify HARM ? > > > >Is it a number, can you put a number to the pain of a burn > across your > >face for 20 years - who do you think you are ? > > Of course it could be difficult to say "I value this burn mark to > 124323 dollars" or "I would pay 5218.12 dollars to have 5 toes just as > everyone else" because it's hard to analyse feelings! This is a > problem courts face each day when they are to decide how much > settlements should be. Sure it's cynical of them to say "you get 10 > 000 dollars for a whiplash and 2000 dollars for a broken leg", but > still they HAVE to convert the emotional harm to some type of value > between 0 and 999999999999999 dollars. > The fact that this, artistically, is very cynical, is doesn't mean > that risk management is a science that should be ignored. On the > contrary! To be able to save as many lives as possible for the money > available, you need to be scientific. > > You still haven't explained exactly how YOU manage risks. Do you split > potential dangers of different magnitude into two groups which you > call "not dangerous" and "dangerous", and spend anything to make the > dangerous things less dangerous and do nothing about the dangers which > have been ranked "not dangerous"? Or do you simply go by intuition and > hunches? > > >In the context of the clock radio how do you decide from the number > you > >get from your 'formula' whether you should make a mental note > about its > >contstruction - as this might be useful when filling in an > insurance > >application - Eh ? > > If you think it is going to take 15 minutes to analyze the fire safety > of a clock radio, it is going to mean it costs you 12.50 dollars if > your salary is 50 dollars per hour. (If it's your spare time, your > time is still about as valuable - slightly LESS if you really wanted > to work longer than what you do, and slightly MORE if you really > wanted to work fewer hours per day). If the estimtated probability > that what you will learn from the investigation of the clock radio is > about 5% that it is built in a way you appreciate it is 2% likely to > cause a fire, which will cause predicted damages of an average 2000 > dollars, then the threat has a value of 2 dollars (0.02*0.05*2000), > which means you overreacted by 625% (12.5 / 2) on this threat. > > This is somewhat simplified, but I could make it more advanced and > take into consideration many more factors (especially the value of > what a fire would damage), and the result would still be about the > same. > > Glenn > Sweden > >