I mostly only skim this thread at this point, occasionally chiming in for straightforward questions, but I assume you are speaking of your full-body exit bag? If so, I would not take that approach. (...)
Hello TiredHorse,
Thank you for your reply, your opinion and your input, very much appreciated! Thank you!
Now, let me add some information, concretize and explain about the full-body-bag-method:
(...) There is no good way to evacuate all extra air from the bag prior to filling it with inert gas. Once you climb into the bag, bringing with you a substantial quantity of air, any gas you then add to the bag would be intrinsically diluted by whatever air exists in the bag. It doesn't matter whether it's the lighter He or the heavier Ar, the differences are not so great that you would not simply create an He- or N2- or Ar-rich air mixture. There would still be plenty of O2 to sustain you. (...)
A) I had recommended to make the available space of the full-body-bag smaller e.g. by attaching a belt or rope around ones hips. The full-body-bag would be kind of an equivalent to a mini-tent, which so many users here think of when playing possibilities through on mind.
B) As I wrote in my entries explaining the full-body-bag-method:
The only good criteria of the regular exit bag-method could be,
* quicker loss of consciousness,
* lesser amount of gas required,
* shorter time to dead,
BUT on the other hand,
a) this beforehand knowledge can even scare people off i.e. to know beforehand that one will loose control over everything that follows so darn quickly, and this scare include/s:
b) the fear that one would/could rip the exit-bag off during those early quick stages of unconsciousness when motoric body-reactions are at their highest/strongest level;
c) the fear that CO2 levels could built up within the exit-bag and trigger a hypercapnic response. This can actually happen when the exit-bag is too small and should definitely be ruled out for a full-body-bag since within the full-body-bag there's lots of space available that prevents any critical build up of CO2 inside;
d) the (individual) objection to putting a bag over one's head.
Resume: These 4 points (a - d) would be eliminated by the full-body-bag-method (as compared to the regular exit-bag).
C) I see your point regarding the Gas/Air-mixture and regarding this I wrote that,
1) taking into account what I wrote above in Ba/Bb/Bc, it would not be necessary to create such a "gas vacuum" to be successful and die safely, peacefully and painlessly. This will be understandable when thinking about the high-mountain climbers who cannot survive long in an environment with too low of an oxigen level but from a certain hight on would get tired and fall asleep without waking up anymore if no one moves them out of the dead-zone.
2) One would - as well - leave a gap/slit for excessive CO2/O2 to be pushed out the full-body-bag by the steady stream of gas from the top into the full-body-bag. It is just that - as I wrote - this method would
a) take longer to achieve unconsciousness and dead (but one would anyway not realise about that because sleeping) and,
b) it would require more gas than a small 5 liter tank could provide, ie a 20 liter tank would be recommended providing a gas-cover for an area/volume of more than 3000 m3 (more than 100000 cubic feet). To compare: A baloon of 210cm has a volume of about 5 m3.
(...) There is no mechanism by which the CO2 can easily be expelled from the inert gas atmosphere you've created. Even if you did somehow manage to evacuate all the air and replace it 100% with inert gas (which I do not see as possible), that inert gas atmosphere would quickly become contaminated with CO2, hypercapnic alarm would set in, and you would involuntarily tear your way out of the bag. (...)
1) The hypercapnic alarm only sets in when a certain level of CO2 has built up within any closed space/bag. In the way you wrote it above the same would hold true for the exit-bag. ;) However, for the exit-bag this CO2-risk is even higher since the space inside the exit-bag is smaller and thus allows for quicker CO2 build-up (as compared to a more voluminous environment such as in a full-body-bag).
2) see point C1 above, ie such a "gas-vacuum" is not necessary to reach ones goal of a safe, peaceful and painless dead.
3) In addition, the gap/slit in the full-body-bag will let O2 and CO2 escape/be pushed out by the bigger inside-gas-pressure.
4) This "plan" would be assisted by either a sleeping pill or by sleep deprivation beforehand so that one would just sleep while passing out and dying, without any risk of ripping off any exit-bag during unconsciousness.
(...) I don't wish to be offensive to you, as you've obviously been putting a lot of thought into your method, but I do not see that your hypothesized method would work very well, if at all. It seems like "a solution looking for a problem." Much as I love tinkering with systems --and I really do!-- I haven't yet seen any improvements on the basic method that don't introduce more problems than they're worth.
A) No worries, you're not being offensive, and I'm interested in receiving new input and discussing the strengths and weaknesses of this full-body-bag-method. 4 eyes see more than 2. :)
B) I think I cannot agree with your "(...) a solution looking for a problem (...)" since the problems are there with the exit-bag as written and described above and many users here have voiced exactly those problems which is why I started to think both methods over, i.e.
1) fear of CO2 build up within the regular exit-bag and hypercapnic response,
2) fear/scared of quick and full loss of control,
3) fear/scared to rip-off the exit-bag in early stages of unconsciousness,
4) rather subjective points like having a bag over ones head, which is not exactly and understandably "everbody's darling", rather of a "cosmetic" nature but still a valid and solid point.
Finally, the survical instinct may be easier to overcome by using the full-body-bag-method due to what I would consider a more supportive, less scary set-up. But everyone has to judge for him-/herself.
If you - and others - feel like, let me know your points and critics. It will be much appreciated! Thank you again!
All information here for educational purpose only!