is this even possible?

well, i know what it feels like to be high, and i know that the smoke is getting me high. i'm not guessing that maybe i'm this mysterious thing called "being high". i'm identifying something i know very well.

i think that the basic idea here is correct: it's hard for second-hand smoke to get you high.

what are the facts, here?

1) this building has no "ventilation system". my windows are wide open when they can be, which is not always. hers are shut. it's certainly not a "hot box", but the smoke is only exiting one direction, and it is up. the winds tend to blow around the building rather than into it.
2) the floors basically aren't there. so, it's like i'm sitting in an open concept above her, directly in her exhale path. sometimes, it's like she's blowing it in my face.
3) i have a very, very low tolerance to marijuana. it appears to be unusually low. i also know this from experience.
4) she has a very high tolerance.
5) she smokes very potent marijuana. it appears to be very high cbd, very low thc. i actually think that the terpene stuff is bullshit. but, this is the kind of pot that knocks you out for days, without really getting you "high".
6) she smokes very big joints, and smokes them frequently.

all of these factors are going to play into this. and, all i can say is i know what i'm feeling, and it's pretty real. this is the experiment, and these are the results i'm reporting. somebody else may have different experiences, due to a higher tolerance....

....but i'm perfectly comfortable with stating that i'm getting knocked out by a high volume of high potency marijuana, even in a relatively open space, but i recognize that it depends on whether i get into contact with what i call a "plume" or not.

i'm not watching her from downstairs, but a "plume" probably happens when she takes a hard three or four hit toke on one of these huge joints. when that happens, i'm getting the smoke burned off the joint (which is substantial), the smoke missed in the toke and the exhaled smoke. what i'm getting at is that the way she smokes is very wasteful, and i'm actually getting a lot of uninhaled marijuana as a result of it.

the smell itself is not going to do it. i have to walk into one of these plumes. and, because she seems to be smoking near my bed [both before and after i moved my bed], that is exactly what is happening, repeatedly.

https://www.livescience.com/50880-secondhand-marijuana-smoke-effects-drug-test.html