i see we are again at the "compressed down under a sleeping bag does not insulate", or such as that ...
i have a bit of an issue with this, as exampled by using a sheet of newspaper to assist in picking up a hot pot.
the thin (very) sheet(s) of paper, made of throughly compressed fibers will absolutely retard the heat transfer into your hand.
there is vastly more to insulation than air. loft be good, for sure. but beyond loft, there remains another world of insulative values.
let's look at that stuff used by Manzella to make thin, and nicely warm gloves. i have 2 pr of them and the older of those gets used on cold weather (for sacramento) bicycle rides. i suspect it's made by goretex, has a bit of stretch to it, and for what it's thickness is, supports an astonishingly high temperature differential between the nippy nippy cold air on the outside, and my reasonably toasty hands on the inside.
like any good bpl member, i keep a wide surface micrometer next to my computer and well within reach. it shows us that Manzella glove stuff (goretex N2S ? ) is 0.029" thick, call it .75mm. that is not really much of a loft if you think about it, and yet, it is reasonably windproof and insulates quite well.
i have an entire top made of N2s, and it's so warm i have never been able to deploy it in the field. great stuff for gloves though !
thickness of insulation and it's effectiveness "may" be related, but it seems not by a lot.
a 2" plate of aluminium alloy will insulate quite a bit more poorly than a similar looking 2" plate of stainless steel.
there are no "perfect" insulators, just as there are no perfect conductors.
air is a good insulator, and if you smoosh enough of it together, you'll get it as a liquid, where it conducts heat pretty darn well !
even used at lesser pressures such as underwater research, it's insulation goes in the pot, and they have to heat underwater stations all out of what might seem reasonable on the surface.
slowing down is a fine concept, and keeping the same state of exertion all day when in challenging environments is vastly tougher than it sounds on a forum. it can be done, but expect some delay before optimal performance is achieved.
nice article, and it gives us food for thought.
those guys on McKinley .. you can easily drive a truck into places you can't back out of. on any real job or adventure, there can be .. consequences.
most of the time when something like that happens , it's just a matter of playing out the end-game .. they were quite effectively dead a long time before they physically expired.
there seem to be a lot of "webs" available, in that one can go down many different roads at many different junctions, the all of them seem defensible choices at the time, and the majority of them just being dead ends, but some of them having a bit of a beast at the end. even just an excess of dead ends will run you out of food, then you are in a hurry, then you do stupid, then you are "unfortunate".
i recently sent back a pair of the lofted wool hoodies, which although looked forward to with much expectation and glee, were found to be so poorly tailored (poor sleeve design) that even at 60% off, i had no use for something like that in my kit. Ibex knows better than to produce something that fits that bad. has all the appearances of a management failure in my op.
a pair of my friends once commented on brown bear dangers on my walks. one, being a mechanic said "well, if they eat 2 people a year in that area, you just wait a bit, and then call up there ...".
the other (and these are my Friends mind you ! ) an actuarial type of accountant said " well peter, as an american citizen, your chances of being consumed by a bear are staggeringly small, although you do raise them quite a bit by Actually Going There... "
that's all i got to say for today. (we hope )