Ok then.
First off, I did not conclude anything for her. I simply asked, what remains?
Perhps someone did come over that she is forgetting about. Perhaps she did actually mismeasure the bag initially. Or some other possibility. But I am suggesting that if these things are in fact ruled out, then there still is an explanation that remains that has not been factually ruled out, but just seems unbelievable.
To her, the suppositon that her fiancee stole it is ruled out not factually, but because it seems to improbable to consider. This is not ruling something out, this is avoiding the responsibility of through investigation.
Hell, for all we know she did it herself and is in horrific denail. We don't know anything, all we can do is respond to what she has said. She said she didn't do it, she said no one else has been around, she said it was kept in a reasonably cool and dark place.
Ok, well...should we belabor the points she outlined, or should we first examine the remaining scenario that has NOT been factually proven, which is that her fiancee did not do it because...uh...because...he just wouldn't do that...um...
If whe does not want to look closely at the the possibility than she is beyond help in this regard.
Now about the evaporation issue...
...at what temperature/humidity does meth break down? And when it does break down, does is also evaporate, or does it simply decompose into something else?
If it evaporates, are the particles small enough to escape the plastic bag they were in, or would the substance recrystallize on the surface of the bag?
100 grams to 17...that's 80% gone. No sign of it anywhere. No residue on the bag. Most of us have used meth. We have stored bags. We have had meth disappear...and discovered that, what...it evaporated? Are there any well known precautions of storage that we know about, like with LSD?
Does LSD break down easier than meth?
Uh...um...
Is meth a drug that is highly addictive? Do addicts lie?
Hmmm
I once had some money evaporate from my wallet...