Hmmm, it's my first time making a real level on the site so I don't have any idea of Korean association :P
I just referenced the level 0 (the original backroom document), and M.E.G seems to have some tools that can measure the composition of a substance. (etc: 'According to analysis, the CO2 levels within Level 0 are rising at a steady rate. The significance of this is unknown.')
Soooooooo, I thought they could measure the substances and height(Actually, you can measure the height easily through the length of shadow.). Also, the level is safe level which doesn't have any entities. So… yeah I think they could do that.
Thanks for the review btw. I appreciate it ^^
Also, it's not finished. I just couldn't do it rn because of the '설날'. Extra update is in progress.